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Finding the Fourth Proportional to 111,508.98, 153,881.08 and 60,521.80

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Solution

The fourth proportional to 111,508.98, 153,881.08 and 60,521.80 is: 83,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.98 : 153,881.08 = 60,521.80 : x
  2. Step 2: Convert to fraction form
    111,508.98/153,881.08 = 60,521.80/x
  3. Step 3: Cross multiply
    111,508.98x = 153,881.08 × 60,521.80
  4. Step 4: Simplify right side
    111,508.98x = 9,313,159,947.54
  5. Step 5: Solve for x
    x = 9,313,159,947.54/111,508.98
  6. Step 6: Final answer
    x = 83,519.37

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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.