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Finding the Fourth Proportional to 78,079.36, 107,750.64 and 44,545.36

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Solution

The fourth proportional to 78,079.36, 107,750.64 and 44,545.36 is: 61,473.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079.36 : 107,750.64 = 44,545.36 : x
  2. Step 2: Convert to fraction form
    78,079.36/107,750.64 = 44,545.36/x
  3. Step 3: Cross multiply
    78,079.36x = 107,750.64 × 44,545.36
  4. Step 4: Simplify right side
    78,079.36x = 4,799,791,049.03
  5. Step 5: Solve for x
    x = 4,799,791,049.03/78,079.36
  6. Step 6: Final answer
    x = 61,473.24

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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.