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Finding the Fourth Proportional to 160,008.41, 220,811.73 and 87,412.30

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Solution

The fourth proportional to 160,008.41, 220,811.73 and 87,412.30 is: 120,629.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,008.41 : 220,811.73 = 87,412.30 : x
  2. Step 2: Convert to fraction form
    160,008.41/220,811.73 = 87,412.30/x
  3. Step 3: Cross multiply
    160,008.41x = 220,811.73 × 87,412.30
  4. Step 4: Simplify right side
    160,008.41x = 19,301,661,186.28
  5. Step 5: Solve for x
    x = 19,301,661,186.28/160,008.41
  6. Step 6: Final answer
    x = 120,629.04

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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.