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Finding the Fourth Proportional to 71,326.80, 106,950.12 and 48,862.81

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Solution

The fourth proportional to 71,326.80, 106,950.12 and 48,862.81 is: 73,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.80 : 106,950.12 = 48,862.81 : x
  2. Step 2: Convert to fraction form
    71,326.80/106,950.12 = 48,862.81/x
  3. Step 3: Cross multiply
    71,326.80x = 106,950.12 × 48,862.81
  4. Step 4: Simplify right side
    71,326.80x = 5,225,883,417.81
  5. Step 5: Solve for x
    x = 5,225,883,417.81/71,326.80
  6. Step 6: Final answer
    x = 73,266.76

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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.