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Finding the Fourth Proportional to 163,432.78, 225,554.59 and 98,937.24

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Solution

The fourth proportional to 163,432.78, 225,554.59 and 98,937.24 is: 136,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,432.78 : 225,554.59 = 98,937.24 : x
  2. Step 2: Convert to fraction form
    163,432.78/225,554.59 = 98,937.24/x
  3. Step 3: Cross multiply
    163,432.78x = 225,554.59 × 98,937.24
  4. Step 4: Simplify right side
    163,432.78x = 22,315,748,603.93
  5. Step 5: Solve for x
    x = 22,315,748,603.93/163,432.78
  6. Step 6: Final answer
    x = 136,543.90

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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.