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Finding the Fourth Proportional to 160,079.69, 220,910.66 and 87,484.03

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Solution

The fourth proportional to 160,079.69, 220,910.66 and 87,484.03 is: 120,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,079.69 : 220,910.66 = 87,484.03 : x
  2. Step 2: Convert to fraction form
    160,079.69/220,910.66 = 87,484.03/x
  3. Step 3: Cross multiply
    160,079.69x = 220,910.66 × 87,484.03
  4. Step 4: Simplify right side
    160,079.69x = 19,326,154,145.13
  5. Step 5: Solve for x
    x = 19,326,154,145.13/160,079.69
  6. Step 6: Final answer
    x = 120,728.33

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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.