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Finding the Fourth Proportional to 71,009,203.60, 106,513,805.40 and 36,571,826.80

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Solution

The fourth proportional to 71,009,203.60, 106,513,805.40 and 36,571,826.80 is: 54,857,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009,203.60 : 106,513,805.40 = 36,571,826.80 : x
  2. Step 2: Convert to fraction form
    71,009,203.60/106,513,805.40 = 36,571,826.80/x
  3. Step 3: Cross multiply
    71,009,203.60x = 106,513,805.40 × 36,571,826.80
  4. Step 4: Simplify right side
    71,009,203.60x = 3,895,404,442,897,704.50
  5. Step 5: Solve for x
    x = 3,895,404,442,897,704.50/71,009,203.60
  6. Step 6: Final answer
    x = 54,857,740.20

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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.