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Finding the Fourth Proportional to 99,289.65, 137,050.38 and 61,060.89

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Solution

The fourth proportional to 99,289.65, 137,050.38 and 61,060.89 is: 84,282.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,289.65 : 137,050.38 = 61,060.89 : x
  2. Step 2: Convert to fraction form
    99,289.65/137,050.38 = 61,060.89/x
  3. Step 3: Cross multiply
    99,289.65x = 137,050.38 × 61,060.89
  4. Step 4: Simplify right side
    99,289.65x = 8,368,418,177.64
  5. Step 5: Solve for x
    x = 8,368,418,177.64/99,289.65
  6. Step 6: Final answer
    x = 84,282.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.