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Finding the Fourth Proportional to 103,614.88, 142,988.30 and 58,292.88

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Solution

The fourth proportional to 103,614.88, 142,988.30 and 58,292.88 is: 80,444.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.88 : 142,988.30 = 58,292.88 : x
  2. Step 2: Convert to fraction form
    103,614.88/142,988.30 = 58,292.88/x
  3. Step 3: Cross multiply
    103,614.88x = 142,988.30 × 58,292.88
  4. Step 4: Simplify right side
    103,614.88x = 8,335,199,813.30
  5. Step 5: Solve for x
    x = 8,335,199,813.30/103,614.88
  6. Step 6: Final answer
    x = 80,444.04

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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.