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Finding the Fourth Proportional to 158,658.75, 237,988.86 and 53,478.63

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Solution

The fourth proportional to 158,658.75, 237,988.86 and 53,478.63 is: 80,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,658.75 : 237,988.86 = 53,478.63 : x
  2. Step 2: Convert to fraction form
    158,658.75/237,988.86 = 53,478.63/x
  3. Step 3: Cross multiply
    158,658.75x = 237,988.86 × 53,478.63
  4. Step 4: Simplify right side
    158,658.75x = 12,727,316,998.12
  5. Step 5: Solve for x
    x = 12,727,316,998.12/158,658.75
  6. Step 6: Final answer
    x = 80,218.19

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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.