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Finding the Fourth Proportional to 127,910,406.40, 179,477,676.80 and 127,910,406.40

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Solution

The fourth proportional to 127,910,406.40, 179,477,676.80 and 127,910,406.40 is: 179,477,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910,406.40 : 179,477,676.80 = 127,910,406.40 : x
  2. Step 2: Convert to fraction form
    127,910,406.40/179,477,676.80 = 127,910,406.40/x
  3. Step 3: Cross multiply
    127,910,406.40x = 179,477,676.80 × 127,910,406.40
  4. Step 4: Simplify right side
    127,910,406.40x = 22,957,062,579,215,856
  5. Step 5: Solve for x
    x = 22,957,062,579,215,856/127,910,406.40
  6. Step 6: Final answer
    x = 179,477,676.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.