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Finding the Fourth Proportional to 162,251.21, 243,376.68 and 61,068.17

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Solution

The fourth proportional to 162,251.21, 243,376.68 and 61,068.17 is: 91,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,251.21 : 243,376.68 = 61,068.17 : x
  2. Step 2: Convert to fraction form
    162,251.21/243,376.68 = 61,068.17/x
  3. Step 3: Cross multiply
    162,251.21x = 243,376.68 × 61,068.17
  4. Step 4: Simplify right side
    162,251.21x = 14,862,568,468.28
  5. Step 5: Solve for x
    x = 14,862,568,468.28/162,251.21
  6. Step 6: Final answer
    x = 91,602.20

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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.