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Finding the Fourth Proportional to 107,988.16, 149,035.20 and 60,258.08

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Solution

The fourth proportional to 107,988.16, 149,035.20 and 60,258.08 is: 83,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,988.16 : 149,035.20 = 60,258.08 : x
  2. Step 2: Convert to fraction form
    107,988.16/149,035.20 = 60,258.08/x
  3. Step 3: Cross multiply
    107,988.16x = 149,035.20 × 60,258.08
  4. Step 4: Simplify right side
    107,988.16x = 8,980,575,004.42
  5. Step 5: Solve for x
    x = 8,980,575,004.42/107,988.16
  6. Step 6: Final answer
    x = 83,162.59

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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.