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Finding the Fourth Proportional to 110,899.52, 153,041.12 and 63,152.88

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Solution

The fourth proportional to 110,899.52, 153,041.12 and 63,152.88 is: 87,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,899.52 : 153,041.12 = 63,152.88 : x
  2. Step 2: Convert to fraction form
    110,899.52/153,041.12 = 63,152.88/x
  3. Step 3: Cross multiply
    110,899.52x = 153,041.12 × 63,152.88
  4. Step 4: Simplify right side
    110,899.52x = 9,664,987,486.43
  5. Step 5: Solve for x
    x = 9,664,987,486.43/110,899.52
  6. Step 6: Final answer
    x = 87,150.85

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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.