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Finding the Fourth Proportional to 91,886.77, 137,701.68 and 49,675.87

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Solution

The fourth proportional to 91,886.77, 137,701.68 and 49,675.87 is: 74,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,886.77 : 137,701.68 = 49,675.87 : x
  2. Step 2: Convert to fraction form
    91,886.77/137,701.68 = 49,675.87/x
  3. Step 3: Cross multiply
    91,886.77x = 137,701.68 × 49,675.87
  4. Step 4: Simplify right side
    91,886.77x = 6,840,450,754.46
  5. Step 5: Solve for x
    x = 6,840,450,754.46/91,886.77
  6. Step 6: Final answer
    x = 74,444.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.