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Finding the Fourth Proportional to 107,710.98, 148,636.35 and 61,737.66

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Solution

The fourth proportional to 107,710.98, 148,636.35 and 61,737.66 is: 85,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,710.98 : 148,636.35 = 61,737.66 : x
  2. Step 2: Convert to fraction form
    107,710.98/148,636.35 = 61,737.66/x
  3. Step 3: Cross multiply
    107,710.98x = 148,636.35 × 61,737.66
  4. Step 4: Simplify right side
    107,710.98x = 9,176,460,439.94
  5. Step 5: Solve for x
    x = 9,176,460,439.94/107,710.98
  6. Step 6: Final answer
    x = 85,195.22

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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.