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Finding the Fourth Proportional to 158,729.13, 238,079.12 and 53,549.01

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Solution

The fourth proportional to 158,729.13, 238,079.12 and 53,549.01 is: 80,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,729.13 : 238,079.12 = 53,549.01 : x
  2. Step 2: Convert to fraction form
    158,729.13/238,079.12 = 53,549.01/x
  3. Step 3: Cross multiply
    158,729.13x = 238,079.12 × 53,549.01
  4. Step 4: Simplify right side
    158,729.13x = 12,748,900,909.93
  5. Step 5: Solve for x
    x = 12,748,900,909.93/158,729.13
  6. Step 6: Final answer
    x = 80,318.60

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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.