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Finding the Fourth Proportional to 124,458.69, 171,752.67 and 67,870.08

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Solution

The fourth proportional to 124,458.69, 171,752.67 and 67,870.08 is: 93,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,458.69 : 171,752.67 = 67,870.08 : x
  2. Step 2: Convert to fraction form
    124,458.69/171,752.67 = 67,870.08/x
  3. Step 3: Cross multiply
    124,458.69x = 171,752.67 × 67,870.08
  4. Step 4: Simplify right side
    124,458.69x = 11,656,867,453.11
  5. Step 5: Solve for x
    x = 11,656,867,453.11/124,458.69
  6. Step 6: Final answer
    x = 93,660.53

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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.