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Finding the Fourth Proportional to 86,708.55, 119,657.39 and 48,468.09

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Solution

The fourth proportional to 86,708.55, 119,657.39 and 48,468.09 is: 66,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.55 : 119,657.39 = 48,468.09 : x
  2. Step 2: Convert to fraction form
    86,708.55/119,657.39 = 48,468.09/x
  3. Step 3: Cross multiply
    86,708.55x = 119,657.39 × 48,468.09
  4. Step 4: Simplify right side
    86,708.55x = 5,799,564,905.34
  5. Step 5: Solve for x
    x = 5,799,564,905.34/86,708.55
  6. Step 6: Final answer
    x = 66,885.73

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1.5x scale

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.