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Finding the Fourth Proportional to 71,697,899.58, 107,546,685.31 and 30,730,775.01

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Solution

The fourth proportional to 71,697,899.58, 107,546,685.31 and 30,730,775.01 is: 46,096,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,697,899.58 : 107,546,685.31 = 30,730,775.01 : x
  2. Step 2: Convert to fraction form
    71,697,899.58/107,546,685.31 = 30,730,775.01/x
  3. Step 3: Cross multiply
    71,697,899.58x = 107,546,685.31 × 30,730,775.01
  4. Step 4: Simplify right side
    71,697,899.58x = 3,304,992,989,332,882.50
  5. Step 5: Solve for x
    x = 3,304,992,989,332,882.50/71,697,899.58
  6. Step 6: Final answer
    x = 46,096,092.20

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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.