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Finding the Fourth Proportional to 230,761.98, 318,451.50 and 127,396.17

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Solution

The fourth proportional to 230,761.98, 318,451.50 and 127,396.17 is: 175,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,761.98 : 318,451.50 = 127,396.17 : x
  2. Step 2: Convert to fraction form
    230,761.98/318,451.50 = 127,396.17/x
  3. Step 3: Cross multiply
    230,761.98x = 318,451.50 × 127,396.17
  4. Step 4: Simplify right side
    230,761.98x = 40,569,501,430.76
  5. Step 5: Solve for x
    x = 40,569,501,430.76/230,761.98
  6. Step 6: Final answer
    x = 175,806.70

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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.