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Finding the Fourth Proportional to 111,505.97, 153,876.94 and 60,518.79

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Solution

The fourth proportional to 111,505.97, 153,876.94 and 60,518.79 is: 83,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,505.97 : 153,876.94 = 60,518.79 : x
  2. Step 2: Convert to fraction form
    111,505.97/153,876.94 = 60,518.79/x
  3. Step 3: Cross multiply
    111,505.97x = 153,876.94 × 60,518.79
  4. Step 4: Simplify right side
    111,505.97x = 9,312,446,066.41
  5. Step 5: Solve for x
    x = 9,312,446,066.41/111,505.97
  6. Step 6: Final answer
    x = 83,515.22

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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.