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Finding the Fourth Proportional to 113,104.80, 169,657.20 and 57,808.80

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Solution

The fourth proportional to 113,104.80, 169,657.20 and 57,808.80 is: 86,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,104.80 : 169,657.20 = 57,808.80 : x
  2. Step 2: Convert to fraction form
    113,104.80/169,657.20 = 57,808.80/x
  3. Step 3: Cross multiply
    113,104.80x = 169,657.20 × 57,808.80
  4. Step 4: Simplify right side
    113,104.80x = 9,807,679,143.36
  5. Step 5: Solve for x
    x = 9,807,679,143.36/113,104.80
  6. Step 6: Final answer
    x = 86,713.20

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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.