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Finding the Fourth Proportional to 111,232.75, 153,501.78 and 60,931.75

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Solution

The fourth proportional to 111,232.75, 153,501.78 and 60,931.75 is: 84,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,232.75 : 153,501.78 = 60,931.75 : x
  2. Step 2: Convert to fraction form
    111,232.75/153,501.78 = 60,931.75/x
  3. Step 3: Cross multiply
    111,232.75x = 153,501.78 × 60,931.75
  4. Step 4: Simplify right side
    111,232.75x = 9,353,132,083.52
  5. Step 5: Solve for x
    x = 9,353,132,083.52/111,232.75
  6. Step 6: Final answer
    x = 84,086.14

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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.