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Finding the Fourth Proportional to 109,225.57, 150,731.25 and 61,479.17

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Solution

The fourth proportional to 109,225.57, 150,731.25 and 61,479.17 is: 84,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,225.57 : 150,731.25 = 61,479.17 : x
  2. Step 2: Convert to fraction form
    109,225.57/150,731.25 = 61,479.17/x
  3. Step 3: Cross multiply
    109,225.57x = 150,731.25 × 61,479.17
  4. Step 4: Simplify right side
    109,225.57x = 9,266,832,143.06
  5. Step 5: Solve for x
    x = 9,266,832,143.06/109,225.57
  6. Step 6: Final answer
    x = 84,841.23

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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.