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Finding the Fourth Proportional to 111,244.92, 153,494.98 and 63,513.80

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Solution

The fourth proportional to 111,244.92, 153,494.98 and 63,513.80 is: 87,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,244.92 : 153,494.98 = 63,513.80 : x
  2. Step 2: Convert to fraction form
    111,244.92/153,494.98 = 63,513.80/x
  3. Step 3: Cross multiply
    111,244.92x = 153,494.98 × 63,513.80
  4. Step 4: Simplify right side
    111,244.92x = 9,749,049,460.72
  5. Step 5: Solve for x
    x = 9,749,049,460.72/111,244.92
  6. Step 6: Final answer
    x = 87,635.91

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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.