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Finding the Fourth Proportional to 107,510.52, 148,374.54 and 65,079.48

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Solution

The fourth proportional to 107,510.52, 148,374.54 and 65,079.48 is: 89,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,510.52 : 148,374.54 = 65,079.48 : x
  2. Step 2: Convert to fraction form
    107,510.52/148,374.54 = 65,079.48/x
  3. Step 3: Cross multiply
    107,510.52x = 148,374.54 × 65,079.48
  4. Step 4: Simplify right side
    107,510.52x = 9,656,137,908.44
  5. Step 5: Solve for x
    x = 9,656,137,908.44/107,510.52
  6. Step 6: Final answer
    x = 89,815.75

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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.