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Finding the Fourth Proportional to 178,027.80, 267,041.70 and 84,715.80

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Solution

The fourth proportional to 178,027.80, 267,041.70 and 84,715.80 is: 127,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,027.80 : 267,041.70 = 84,715.80 : x
  2. Step 2: Convert to fraction form
    178,027.80/267,041.70 = 84,715.80/x
  3. Step 3: Cross multiply
    178,027.80x = 267,041.70 × 84,715.80
  4. Step 4: Simplify right side
    178,027.80x = 22,622,651,248.86
  5. Step 5: Solve for x
    x = 22,622,651,248.86/178,027.80
  6. Step 6: Final answer
    x = 127,073.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.