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Finding the Fourth Proportional to 145,536,279.90, 218,304,419.85 and 145,536,279.90

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Solution

The fourth proportional to 145,536,279.90, 218,304,419.85 and 145,536,279.90 is: 218,304,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,279.90 : 218,304,419.85 = 145,536,279.90 : x
  2. Step 2: Convert to fraction form
    145,536,279.90/218,304,419.85 = 145,536,279.90/x
  3. Step 3: Cross multiply
    145,536,279.90x = 218,304,419.85 × 145,536,279.90
  4. Step 4: Simplify right side
    145,536,279.90x = 31,771,213,150,696,716
  5. Step 5: Solve for x
    x = 31,771,213,150,696,716/145,536,279.90
  6. Step 6: Final answer
    x = 218,304,419.85

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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.