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Finding the Fourth Proportional to 79,292.28, 109,423.27 and 42,994.92

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Solution

The fourth proportional to 79,292.28, 109,423.27 and 42,994.92 is: 59,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,292.28 : 109,423.27 = 42,994.92 : x
  2. Step 2: Convert to fraction form
    79,292.28/109,423.27 = 42,994.92/x
  3. Step 3: Cross multiply
    79,292.28x = 109,423.27 × 42,994.92
  4. Step 4: Simplify right side
    79,292.28x = 4,704,644,739.79
  5. Step 5: Solve for x
    x = 4,704,644,739.79/79,292.28
  6. Step 6: Final answer
    x = 59,332.95

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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.