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Finding the Fourth Proportional to 111,335.77, 153,640.19 and 63,588.13

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Solution

The fourth proportional to 111,335.77, 153,640.19 and 63,588.13 is: 87,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,335.77 : 153,640.19 = 63,588.13 : x
  2. Step 2: Convert to fraction form
    111,335.77/153,640.19 = 63,588.13/x
  3. Step 3: Cross multiply
    111,335.77x = 153,640.19 × 63,588.13
  4. Step 4: Simplify right side
    111,335.77x = 9,769,692,057.00
  5. Step 5: Solve for x
    x = 9,769,692,057.00/111,335.77
  6. Step 6: Final answer
    x = 87,749.80

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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.