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Finding the Fourth Proportional to 73,808,057.60, 110,712,086.40 and 39,370,680.80

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Solution

The fourth proportional to 73,808,057.60, 110,712,086.40 and 39,370,680.80 is: 59,056,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,808,057.60 : 110,712,086.40 = 39,370,680.80 : x
  2. Step 2: Convert to fraction form
    73,808,057.60/110,712,086.40 = 39,370,680.80/x
  3. Step 3: Cross multiply
    73,808,057.60x = 110,712,086.40 × 39,370,680.80
  4. Step 4: Simplify right side
    73,808,057.60x = 4,358,810,214,356,421
  5. Step 5: Solve for x
    x = 4,358,810,214,356,421/73,808,057.60
  6. Step 6: Final answer
    x = 59,056,021.20

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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.