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Finding the Fourth Proportional to 84,200,666.70, 126,301,000.05 and 84,200,666.70

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Solution

The fourth proportional to 84,200,666.70, 126,301,000.05 and 84,200,666.70 is: 126,301,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200,666.70 : 126,301,000.05 = 84,200,666.70 : x
  2. Step 2: Convert to fraction form
    84,200,666.70/126,301,000.05 = 84,200,666.70/x
  3. Step 3: Cross multiply
    84,200,666.70x = 126,301,000.05 × 84,200,666.70
  4. Step 4: Simplify right side
    84,200,666.70x = 10,634,628,409,086,734
  5. Step 5: Solve for x
    x = 10,634,628,409,086,734/84,200,666.70
  6. Step 6: Final answer
    x = 126,301,000.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.