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Finding the Fourth Proportional to 156,803.46, 216,381.84 and 88,819.07

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Solution

The fourth proportional to 156,803.46, 216,381.84 and 88,819.07 is: 122,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,803.46 : 216,381.84 = 88,819.07 : x
  2. Step 2: Convert to fraction form
    156,803.46/216,381.84 = 88,819.07/x
  3. Step 3: Cross multiply
    156,803.46x = 216,381.84 × 88,819.07
  4. Step 4: Simplify right side
    156,803.46x = 19,218,832,711.78
  5. Step 5: Solve for x
    x = 19,218,832,711.78/156,803.46
  6. Step 6: Final answer
    x = 122,566.38

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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.