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Finding the Fourth Proportional to 111,033.60, 153,225.12 and 60,732

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Solution

The fourth proportional to 111,033.60, 153,225.12 and 60,732 is: 83,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,033.60 : 153,225.12 = 60,732 : x
  2. Step 2: Convert to fraction form
    111,033.60/153,225.12 = 60,732/x
  3. Step 3: Cross multiply
    111,033.60x = 153,225.12 × 60,732
  4. Step 4: Simplify right side
    111,033.60x = 9,305,667,987.84
  5. Step 5: Solve for x
    x = 9,305,667,987.84/111,033.60
  6. Step 6: Final answer
    x = 83,809.48

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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.