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Finding the Fourth Proportional to 111,212.17, 153,472.80 and 60,911.17

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Solution

The fourth proportional to 111,212.17, 153,472.80 and 60,911.17 is: 84,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.17 : 153,472.80 = 60,911.17 : x
  2. Step 2: Convert to fraction form
    111,212.17/153,472.80 = 60,911.17/x
  3. Step 3: Cross multiply
    111,212.17x = 153,472.80 × 60,911.17
  4. Step 4: Simplify right side
    111,212.17x = 9,348,207,811.18
  5. Step 5: Solve for x
    x = 9,348,207,811.18/111,212.17
  6. Step 6: Final answer
    x = 84,057.42

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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.