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Finding the Fourth Proportional to 111,524.41, 153,866.20 and 71,261.74

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Solution

The fourth proportional to 111,524.41, 153,866.20 and 71,261.74 is: 98,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,524.41 : 153,866.20 = 71,261.74 : x
  2. Step 2: Convert to fraction form
    111,524.41/153,866.20 = 71,261.74/x
  3. Step 3: Cross multiply
    111,524.41x = 153,866.20 × 71,261.74
  4. Step 4: Simplify right side
    111,524.41x = 10,964,773,139.19
  5. Step 5: Solve for x
    x = 10,964,773,139.19/111,524.41
  6. Step 6: Final answer
    x = 98,317.25

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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.