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Finding the Fourth Proportional to 111,012.53, 153,201.17 and 63,258.17

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Solution

The fourth proportional to 111,012.53, 153,201.17 and 63,258.17 is: 87,298.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,012.53 : 153,201.17 = 63,258.17 : x
  2. Step 2: Convert to fraction form
    111,012.53/153,201.17 = 63,258.17/x
  3. Step 3: Cross multiply
    111,012.53x = 153,201.17 × 63,258.17
  4. Step 4: Simplify right side
    111,012.53x = 9,691,225,048.20
  5. Step 5: Solve for x
    x = 9,691,225,048.20/111,012.53
  6. Step 6: Final answer
    x = 87,298.48

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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.