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Finding the Fourth Proportional to 113,118.40, 169,726.20 and 57,714.40

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Solution

The fourth proportional to 113,118.40, 169,726.20 and 57,714.40 is: 86,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,118.40 : 169,726.20 = 57,714.40 : x
  2. Step 2: Convert to fraction form
    113,118.40/169,726.20 = 57,714.40/x
  3. Step 3: Cross multiply
    113,118.40x = 169,726.20 × 57,714.40
  4. Step 4: Simplify right side
    113,118.40x = 9,795,645,797.28
  5. Step 5: Solve for x
    x = 9,795,645,797.28/113,118.40
  6. Step 6: Final answer
    x = 86,596.40

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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.