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Finding the Fourth Proportional to 111,052.08, 153,253.08 and 60,750

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Solution

The fourth proportional to 111,052.08, 153,253.08 and 60,750 is: 83,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,052.08 : 153,253.08 = 60,750 : x
  2. Step 2: Convert to fraction form
    111,052.08/153,253.08 = 60,750/x
  3. Step 3: Cross multiply
    111,052.08x = 153,253.08 × 60,750
  4. Step 4: Simplify right side
    111,052.08x = 9,310,124,610
  5. Step 5: Solve for x
    x = 9,310,124,610/111,052.08
  6. Step 6: Final answer
    x = 83,835.66

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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.