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Finding the Fourth Proportional to 111,009.62, 153,189.14 and 63,253.73

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Solution

The fourth proportional to 111,009.62, 153,189.14 and 63,253.73 is: 87,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009.62 : 153,189.14 = 63,253.73 : x
  2. Step 2: Convert to fraction form
    111,009.62/153,189.14 = 63,253.73/x
  3. Step 3: Cross multiply
    111,009.62x = 153,189.14 × 63,253.73
  4. Step 4: Simplify right side
    111,009.62x = 9,689,785,041.60
  5. Step 5: Solve for x
    x = 9,689,785,041.60/111,009.62
  6. Step 6: Final answer
    x = 87,287.80

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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.