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Finding the Fourth Proportional to 92,133.59, 138,199.91 and 79,615.58

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Solution

The fourth proportional to 92,133.59, 138,199.91 and 79,615.58 is: 119,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,133.59 : 138,199.91 = 79,615.58 : x
  2. Step 2: Convert to fraction form
    92,133.59/138,199.91 = 79,615.58/x
  3. Step 3: Cross multiply
    92,133.59x = 138,199.91 × 79,615.58
  4. Step 4: Simplify right side
    92,133.59x = 11,002,864,901.52
  5. Step 5: Solve for x
    x = 11,002,864,901.52/92,133.59
  6. Step 6: Final answer
    x = 119,422.95

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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.