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Finding the Fourth Proportional to 71,569,657.40, 107,354,486.10 and 33,218,425.40

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Solution

The fourth proportional to 71,569,657.40, 107,354,486.10 and 33,218,425.40 is: 49,827,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569,657.40 : 107,354,486.10 = 33,218,425.40 : x
  2. Step 2: Convert to fraction form
    71,569,657.40/107,354,486.10 = 33,218,425.40/x
  3. Step 3: Cross multiply
    71,569,657.40x = 107,354,486.10 × 33,218,425.40
  4. Step 4: Simplify right side
    71,569,657.40x = 3,566,146,987,868,186.50
  5. Step 5: Solve for x
    x = 3,566,146,987,868,186.50/71,569,657.40
  6. Step 6: Final answer
    x = 49,827,638.10

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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.