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Finding the Fourth Proportional to 230,591.12, 318,215.88 and 124,607.12

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Solution

The fourth proportional to 230,591.12, 318,215.88 and 124,607.12 is: 171,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,591.12 : 318,215.88 = 124,607.12 : x
  2. Step 2: Convert to fraction form
    230,591.12/318,215.88 = 124,607.12/x
  3. Step 3: Cross multiply
    230,591.12x = 318,215.88 × 124,607.12
  4. Step 4: Simplify right side
    230,591.12x = 39,651,964,345.07
  5. Step 5: Solve for x
    x = 39,651,964,345.07/230,591.12
  6. Step 6: Final answer
    x = 171,957.90

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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.