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Finding the Fourth Proportional to 372,189.64, 558,284.76 and 91,706.92

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Solution

The fourth proportional to 372,189.64, 558,284.76 and 91,706.92 is: 137,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,189.64 : 558,284.76 = 91,706.92 : x
  2. Step 2: Convert to fraction form
    372,189.64/558,284.76 = 91,706.92/x
  3. Step 3: Cross multiply
    372,189.64x = 558,284.76 × 91,706.92
  4. Step 4: Simplify right side
    372,189.64x = 51,198,575,822.54
  5. Step 5: Solve for x
    x = 51,198,575,822.54/372,189.64
  6. Step 6: Final answer
    x = 137,560.45

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1.5x scale

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.