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Finding the Fourth Proportional to 107,935.60, 161,854.80 and 48,740.80

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Solution

The fourth proportional to 107,935.60, 161,854.80 and 48,740.80 is: 73,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,935.60 : 161,854.80 = 48,740.80 : x
  2. Step 2: Convert to fraction form
    107,935.60/161,854.80 = 48,740.80/x
  3. Step 3: Cross multiply
    107,935.60x = 161,854.80 × 48,740.80
  4. Step 4: Simplify right side
    107,935.60x = 7,888,932,435.84
  5. Step 5: Solve for x
    x = 7,888,932,435.84/107,935.60
  6. Step 6: Final answer
    x = 73,089.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.