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Finding the Fourth Proportional to 156,737, 216,363.26 and 105,818.68

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Solution

The fourth proportional to 156,737, 216,363.26 and 105,818.68 is: 146,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,737 : 216,363.26 = 105,818.68 : x
  2. Step 2: Convert to fraction form
    156,737/216,363.26 = 105,818.68/x
  3. Step 3: Cross multiply
    156,737x = 216,363.26 × 105,818.68
  4. Step 4: Simplify right side
    156,737x = 22,895,274,573.70
  5. Step 5: Solve for x
    x = 22,895,274,573.70/156,737
  6. Step 6: Final answer
    x = 146,074.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.