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Finding the Fourth Proportional to 111,486.91, 153,851.16 and 60,498.35

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Solution

The fourth proportional to 111,486.91, 153,851.16 and 60,498.35 is: 83,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,486.91 : 153,851.16 = 60,498.35 : x
  2. Step 2: Convert to fraction form
    111,486.91/153,851.16 = 60,498.35/x
  3. Step 3: Cross multiply
    111,486.91x = 153,851.16 × 60,498.35
  4. Step 4: Simplify right side
    111,486.91x = 9,307,740,253.84
  5. Step 5: Solve for x
    x = 9,307,740,253.84/111,486.91
  6. Step 6: Final answer
    x = 83,487.29

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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.