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Finding the Fourth Proportional to 79,069.86, 109,122.84 and 45,088.92

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Solution

The fourth proportional to 79,069.86, 109,122.84 and 45,088.92 is: 62,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,069.86 : 109,122.84 = 45,088.92 : x
  2. Step 2: Convert to fraction form
    79,069.86/109,122.84 = 45,088.92/x
  3. Step 3: Cross multiply
    79,069.86x = 109,122.84 × 45,088.92
  4. Step 4: Simplify right side
    79,069.86x = 4,920,231,002.93
  5. Step 5: Solve for x
    x = 4,920,231,002.93/79,069.86
  6. Step 6: Final answer
    x = 62,226.38

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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.