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Finding the Fourth Proportional to 156,436, 234,657.84 and 56,605.60

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Solution

The fourth proportional to 156,436, 234,657.84 and 56,605.60 is: 84,909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,436 : 234,657.84 = 56,605.60 : x
  2. Step 2: Convert to fraction form
    156,436/234,657.84 = 56,605.60/x
  3. Step 3: Cross multiply
    156,436x = 234,657.84 × 56,605.60
  4. Step 4: Simplify right side
    156,436x = 13,282,947,827.90
  5. Step 5: Solve for x
    x = 13,282,947,827.90/156,436
  6. Step 6: Final answer
    x = 84,909.79

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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.