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Finding the Fourth Proportional to 156,478,052.70, 219,522,770.10 and 156,478,052.70

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Solution

The fourth proportional to 156,478,052.70, 219,522,770.10 and 156,478,052.70 is: 219,522,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,478,052.70 : 219,522,770.10 = 156,478,052.70 : x
  2. Step 2: Convert to fraction form
    156,478,052.70/219,522,770.10 = 156,478,052.70/x
  3. Step 3: Cross multiply
    156,478,052.70x = 219,522,770.10 × 156,478,052.70
  4. Step 4: Simplify right side
    156,478,052.70x = 34,350,495,588,557,780
  5. Step 5: Solve for x
    x = 34,350,495,588,557,780/156,478,052.70
  6. Step 6: Final answer
    x = 219,522,770.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.