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Finding the Fourth Proportional to 186,129.73, 256,861.02 and 101,247

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Solution

The fourth proportional to 186,129.73, 256,861.02 and 101,247 is: 139,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,129.73 : 256,861.02 = 101,247 : x
  2. Step 2: Convert to fraction form
    186,129.73/256,861.02 = 101,247/x
  3. Step 3: Cross multiply
    186,129.73x = 256,861.02 × 101,247
  4. Step 4: Simplify right side
    186,129.73x = 26,006,407,691.94
  5. Step 5: Solve for x
    x = 26,006,407,691.94/186,129.73
  6. Step 6: Final answer
    x = 139,721.94

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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.