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Finding the Fourth Proportional to 111,503.86, 153,876.44 and 60,517.05

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Solution

The fourth proportional to 111,503.86, 153,876.44 and 60,517.05 is: 83,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,503.86 : 153,876.44 = 60,517.05 : x
  2. Step 2: Convert to fraction form
    111,503.86/153,876.44 = 60,517.05/x
  3. Step 3: Cross multiply
    111,503.86x = 153,876.44 × 60,517.05
  4. Step 4: Simplify right side
    111,503.86x = 9,312,147,646.53
  5. Step 5: Solve for x
    x = 9,312,147,646.53/111,503.86
  6. Step 6: Final answer
    x = 83,514.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.