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Finding the Fourth Proportional to 66,032,848.80, 99,072,892.80 and 27,706,111.20

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Solution

The fourth proportional to 66,032,848.80, 99,072,892.80 and 27,706,111.20 is: 41,569,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,032,848.80 : 99,072,892.80 = 27,706,111.20 : x
  2. Step 2: Convert to fraction form
    66,032,848.80/99,072,892.80 = 27,706,111.20/x
  3. Step 3: Cross multiply
    66,032,848.80x = 99,072,892.80 × 27,706,111.20
  4. Step 4: Simplify right side
    66,032,848.80x = 2,744,924,584,822,479
  5. Step 5: Solve for x
    x = 2,744,924,584,822,479/66,032,848.80
  6. Step 6: Final answer
    x = 41,569,077.13

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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.