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Finding the Fourth Proportional to 111,245.74, 153,530.13 and 63,506.26

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Solution

The fourth proportional to 111,245.74, 153,530.13 and 63,506.26 is: 87,644.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,245.74 : 153,530.13 = 63,506.26 : x
  2. Step 2: Convert to fraction form
    111,245.74/153,530.13 = 63,506.26/x
  3. Step 3: Cross multiply
    111,245.74x = 153,530.13 × 63,506.26
  4. Step 4: Simplify right side
    111,245.74x = 9,750,124,353.61
  5. Step 5: Solve for x
    x = 9,750,124,353.61/111,245.74
  6. Step 6: Final answer
    x = 87,644.92

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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.