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Finding the Fourth Proportional to 170,418, 235,178.48 and 93,940.04

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Solution

The fourth proportional to 170,418, 235,178.48 and 93,940.04 is: 129,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,418 : 235,178.48 = 93,940.04 : x
  2. Step 2: Convert to fraction form
    170,418/235,178.48 = 93,940.04/x
  3. Step 3: Cross multiply
    170,418x = 235,178.48 × 93,940.04
  4. Step 4: Simplify right side
    170,418x = 22,092,674,172.75
  5. Step 5: Solve for x
    x = 22,092,674,172.75/170,418
  6. Step 6: Final answer
    x = 129,638.15

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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.