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Finding the Fourth Proportional to 111,487.54, 153,852.90 and 63,741.88

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Solution

The fourth proportional to 111,487.54, 153,852.90 and 63,741.88 is: 87,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.54 : 153,852.90 = 63,741.88 : x
  2. Step 2: Convert to fraction form
    111,487.54/153,852.90 = 63,741.88/x
  3. Step 3: Cross multiply
    111,487.54x = 153,852.90 × 63,741.88
  4. Step 4: Simplify right side
    111,487.54x = 9,806,873,089.45
  5. Step 5: Solve for x
    x = 9,806,873,089.45/111,487.54
  6. Step 6: Final answer
    x = 87,963.85

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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.