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Finding the Fourth Proportional to 111,031.08, 153,224.10 and 60,729

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Solution

The fourth proportional to 111,031.08, 153,224.10 and 60,729 is: 83,806.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,031.08 : 153,224.10 = 60,729 : x
  2. Step 2: Convert to fraction form
    111,031.08/153,224.10 = 60,729/x
  3. Step 3: Cross multiply
    111,031.08x = 153,224.10 × 60,729
  4. Step 4: Simplify right side
    111,031.08x = 9,305,146,368.90
  5. Step 5: Solve for x
    x = 9,305,146,368.90/111,031.08
  6. Step 6: Final answer
    x = 83,806.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.