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Finding the Fourth Proportional to 127,910,405.40, 179,477,675.40 and 127,910,405.40

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Solution

The fourth proportional to 127,910,405.40, 179,477,675.40 and 127,910,405.40 is: 179,477,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910,405.40 : 179,477,675.40 = 127,910,405.40 : x
  2. Step 2: Convert to fraction form
    127,910,405.40/179,477,675.40 = 127,910,405.40/x
  3. Step 3: Cross multiply
    127,910,405.40x = 179,477,675.40 × 127,910,405.40
  4. Step 4: Simplify right side
    127,910,405.40x = 22,957,062,220,663,608
  5. Step 5: Solve for x
    x = 22,957,062,220,663,608/127,910,405.40
  6. Step 6: Final answer
    x = 179,477,675.40

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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.