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Finding the Fourth Proportional to 292,116.38, 403,122.42 and 178,939.13

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Solution

The fourth proportional to 292,116.38, 403,122.42 and 178,939.13 is: 246,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,116.38 : 403,122.42 = 178,939.13 : x
  2. Step 2: Convert to fraction form
    292,116.38/403,122.42 = 178,939.13/x
  3. Step 3: Cross multiply
    292,116.38x = 403,122.42 × 178,939.13
  4. Step 4: Simplify right side
    292,116.38x = 72,134,373,102.68
  5. Step 5: Solve for x
    x = 72,134,373,102.68/292,116.38
  6. Step 6: Final answer
    x = 246,937.11

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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.