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Finding the Fourth Proportional to 163,612.70, 245,419.05 and 88,963.10

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Solution

The fourth proportional to 163,612.70, 245,419.05 and 88,963.10 is: 133,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,612.70 : 245,419.05 = 88,963.10 : x
  2. Step 2: Convert to fraction form
    163,612.70/245,419.05 = 88,963.10/x
  3. Step 3: Cross multiply
    163,612.70x = 245,419.05 × 88,963.10
  4. Step 4: Simplify right side
    163,612.70x = 21,833,239,487.06
  5. Step 5: Solve for x
    x = 21,833,239,487.06/163,612.70
  6. Step 6: Final answer
    x = 133,444.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.