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Finding the Fourth Proportional to 107,876.66, 148,868.85 and 58,818.31

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Solution

The fourth proportional to 107,876.66, 148,868.85 and 58,818.31 is: 81,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.66 : 148,868.85 = 58,818.31 : x
  2. Step 2: Convert to fraction form
    107,876.66/148,868.85 = 58,818.31/x
  3. Step 3: Cross multiply
    107,876.66x = 148,868.85 × 58,818.31
  4. Step 4: Simplify right side
    107,876.66x = 8,756,214,017.04
  5. Step 5: Solve for x
    x = 8,756,214,017.04/107,876.66
  6. Step 6: Final answer
    x = 81,168.76

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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.