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Finding the Fourth Proportional to 185,630.10, 256,167.99 and 100,747.14

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Solution

The fourth proportional to 185,630.10, 256,167.99 and 100,747.14 is: 139,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,630.10 : 256,167.99 = 100,747.14 : x
  2. Step 2: Convert to fraction form
    185,630.10/256,167.99 = 100,747.14/x
  3. Step 3: Cross multiply
    185,630.10x = 256,167.99 × 100,747.14
  4. Step 4: Simplify right side
    185,630.10x = 25,808,192,352.05
  5. Step 5: Solve for x
    x = 25,808,192,352.05/185,630.10
  6. Step 6: Final answer
    x = 139,030.21

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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.