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Finding the Fourth Proportional to 113,520.70, 170,281.05 and 101,054.80

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Solution

The fourth proportional to 113,520.70, 170,281.05 and 101,054.80 is: 151,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,520.70 : 170,281.05 = 101,054.80 : x
  2. Step 2: Convert to fraction form
    113,520.70/170,281.05 = 101,054.80/x
  3. Step 3: Cross multiply
    113,520.70x = 170,281.05 × 101,054.80
  4. Step 4: Simplify right side
    113,520.70x = 17,207,717,451.54
  5. Step 5: Solve for x
    x = 17,207,717,451.54/113,520.70
  6. Step 6: Final answer
    x = 151,582.20

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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.