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Finding the Fourth Proportional to 169,258.78, 233,602.86 and 108,031.42

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Solution

The fourth proportional to 169,258.78, 233,602.86 and 108,031.42 is: 149,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,258.78 : 233,602.86 = 108,031.42 : x
  2. Step 2: Convert to fraction form
    169,258.78/233,602.86 = 108,031.42/x
  3. Step 3: Cross multiply
    169,258.78x = 233,602.86 × 108,031.42
  4. Step 4: Simplify right side
    169,258.78x = 25,236,448,681.86
  5. Step 5: Solve for x
    x = 25,236,448,681.86/169,258.78
  6. Step 6: Final answer
    x = 149,099.79

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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.