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Finding the Fourth Proportional to 111,237.76, 153,519.11 and 63,498.28

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Solution

The fourth proportional to 111,237.76, 153,519.11 and 63,498.28 is: 87,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,237.76 : 153,519.11 = 63,498.28 : x
  2. Step 2: Convert to fraction form
    111,237.76/153,519.11 = 63,498.28/x
  3. Step 3: Cross multiply
    111,237.76x = 153,519.11 × 63,498.28
  4. Step 4: Simplify right side
    111,237.76x = 9,748,199,432.13
  5. Step 5: Solve for x
    x = 9,748,199,432.13/111,237.76
  6. Step 6: Final answer
    x = 87,633.91

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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.