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Finding the Fourth Proportional to 104,191.92, 143,737.20 and 61,726.32

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Solution

The fourth proportional to 104,191.92, 143,737.20 and 61,726.32 is: 85,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,191.92 : 143,737.20 = 61,726.32 : x
  2. Step 2: Convert to fraction form
    104,191.92/143,737.20 = 61,726.32/x
  3. Step 3: Cross multiply
    104,191.92x = 143,737.20 × 61,726.32
  4. Step 4: Simplify right side
    104,191.92x = 8,872,368,403.10
  5. Step 5: Solve for x
    x = 8,872,368,403.10/104,191.92
  6. Step 6: Final answer
    x = 85,154.09

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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.