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Finding the Fourth Proportional to 162,037.76, 223,652.12 and 98,428.86

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Solution

The fourth proportional to 162,037.76, 223,652.12 and 98,428.86 is: 135,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,037.76 : 223,652.12 = 98,428.86 : x
  2. Step 2: Convert to fraction form
    162,037.76/223,652.12 = 98,428.86/x
  3. Step 3: Cross multiply
    162,037.76x = 223,652.12 × 98,428.86
  4. Step 4: Simplify right side
    162,037.76x = 22,013,822,716.04
  5. Step 5: Solve for x
    x = 22,013,822,716.04/162,037.76
  6. Step 6: Final answer
    x = 135,856.13

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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.