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Finding the Fourth Proportional to 111,157.48, 153,257.70 and 88,442.92

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Solution

The fourth proportional to 111,157.48, 153,257.70 and 88,442.92 is: 121,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,157.48 : 153,257.70 = 88,442.92 : x
  2. Step 2: Convert to fraction form
    111,157.48/153,257.70 = 88,442.92/x
  3. Step 3: Cross multiply
    111,157.48x = 153,257.70 × 88,442.92
  4. Step 4: Simplify right side
    111,157.48x = 13,554,558,500.48
  5. Step 5: Solve for x
    x = 13,554,558,500.48/111,157.48
  6. Step 6: Final answer
    x = 121,940.14

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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.