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Finding the Fourth Proportional to 169,889.77, 234,422.06 and 93,412

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Solution

The fourth proportional to 169,889.77, 234,422.06 and 93,412 is: 128,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,889.77 : 234,422.06 = 93,412 : x
  2. Step 2: Convert to fraction form
    169,889.77/234,422.06 = 93,412/x
  3. Step 3: Cross multiply
    169,889.77x = 234,422.06 × 93,412
  4. Step 4: Simplify right side
    169,889.77x = 21,897,833,468.72
  5. Step 5: Solve for x
    x = 21,897,833,468.72/169,889.77
  6. Step 6: Final answer
    x = 128,894.36

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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.