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Finding the Fourth Proportional to 169,907.55, 234,478.43 and 93,432.48

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Solution

The fourth proportional to 169,907.55, 234,478.43 and 93,432.48 is: 128,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,907.55 : 234,478.43 = 93,432.48 : x
  2. Step 2: Convert to fraction form
    169,907.55/234,478.43 = 93,432.48/x
  3. Step 3: Cross multiply
    169,907.55x = 234,478.43 × 93,432.48
  4. Step 4: Simplify right side
    169,907.55x = 21,907,901,221.41
  5. Step 5: Solve for x
    x = 21,907,901,221.41/169,907.55
  6. Step 6: Final answer
    x = 128,940.13

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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.