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Finding the Fourth Proportional to 86,506.66, 129,646.95 and 44,351.02

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Solution

The fourth proportional to 86,506.66, 129,646.95 and 44,351.02 is: 66,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,506.66 : 129,646.95 = 44,351.02 : x
  2. Step 2: Convert to fraction form
    86,506.66/129,646.95 = 44,351.02/x
  3. Step 3: Cross multiply
    86,506.66x = 129,646.95 × 44,351.02
  4. Step 4: Simplify right side
    86,506.66x = 5,749,974,472.39
  5. Step 5: Solve for x
    x = 5,749,974,472.39/86,506.66
  6. Step 6: Final answer
    x = 66,468.58

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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.