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Finding the Fourth Proportional to 83,009.70, 124,514.55 and 36,353.70

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Solution

The fourth proportional to 83,009.70, 124,514.55 and 36,353.70 is: 54,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009.70 : 124,514.55 = 36,353.70 : x
  2. Step 2: Convert to fraction form
    83,009.70/124,514.55 = 36,353.70/x
  3. Step 3: Cross multiply
    83,009.70x = 124,514.55 × 36,353.70
  4. Step 4: Simplify right side
    83,009.70x = 4,526,564,596.34
  5. Step 5: Solve for x
    x = 4,526,564,596.34/83,009.70
  6. Step 6: Final answer
    x = 54,530.55

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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.