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Finding the Fourth Proportional to 185,630.01, 256,167.90 and 100,747.11

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Solution

The fourth proportional to 185,630.01, 256,167.90 and 100,747.11 is: 139,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,630.01 : 256,167.90 = 100,747.11 : x
  2. Step 2: Convert to fraction form
    185,630.01/256,167.90 = 100,747.11/x
  3. Step 3: Cross multiply
    185,630.01x = 256,167.90 × 100,747.11
  4. Step 4: Simplify right side
    185,630.01x = 25,808,175,599.77
  5. Step 5: Solve for x
    x = 25,808,175,599.77/185,630.01
  6. Step 6: Final answer
    x = 139,030.19

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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.