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Finding the Fourth Proportional to 99,950.58, 137,909.25 and 59,670.90

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Solution

The fourth proportional to 99,950.58, 137,909.25 and 59,670.90 is: 82,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,950.58 : 137,909.25 = 59,670.90 : x
  2. Step 2: Convert to fraction form
    99,950.58/137,909.25 = 59,670.90/x
  3. Step 3: Cross multiply
    99,950.58x = 137,909.25 × 59,670.90
  4. Step 4: Simplify right side
    99,950.58x = 8,229,169,065.83
  5. Step 5: Solve for x
    x = 8,229,169,065.83/99,950.58
  6. Step 6: Final answer
    x = 82,332.38

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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.