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Finding the Fourth Proportional to 158,593.55, 218,838.92 and 90,614.92

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Solution

The fourth proportional to 158,593.55, 218,838.92 and 90,614.92 is: 125,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,593.55 : 218,838.92 = 90,614.92 : x
  2. Step 2: Convert to fraction form
    158,593.55/218,838.92 = 90,614.92/x
  3. Step 3: Cross multiply
    158,593.55x = 218,838.92 × 90,614.92
  4. Step 4: Simplify right side
    158,593.55x = 19,830,070,638.84
  5. Step 5: Solve for x
    x = 19,830,070,638.84/158,593.55
  6. Step 6: Final answer
    x = 125,037.06

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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.