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Finding the Fourth Proportional to 107,357.60, 161,036.40 and 75,864.80

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Solution

The fourth proportional to 107,357.60, 161,036.40 and 75,864.80 is: 113,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,357.60 : 161,036.40 = 75,864.80 : x
  2. Step 2: Convert to fraction form
    107,357.60/161,036.40 = 75,864.80/x
  3. Step 3: Cross multiply
    107,357.60x = 161,036.40 × 75,864.80
  4. Step 4: Simplify right side
    107,357.60x = 12,216,994,278.72
  5. Step 5: Solve for x
    x = 12,216,994,278.72/107,357.60
  6. Step 6: Final answer
    x = 113,797.20

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1.5x scale

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.