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Finding the Fourth Proportional to 107,657.64, 148,565.34 and 67,393.61

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Solution

The fourth proportional to 107,657.64, 148,565.34 and 67,393.61 is: 93,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,657.64 : 148,565.34 = 67,393.61 : x
  2. Step 2: Convert to fraction form
    107,657.64/148,565.34 = 67,393.61/x
  3. Step 3: Cross multiply
    107,657.64x = 148,565.34 × 67,393.61
  4. Step 4: Simplify right side
    107,657.64x = 10,012,353,840.65
  5. Step 5: Solve for x
    x = 10,012,353,840.65/107,657.64
  6. Step 6: Final answer
    x = 93,001.80

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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.