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Finding the Fourth Proportional to 178,168.50, 245,876.49 and 101,686.07

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Solution

The fourth proportional to 178,168.50, 245,876.49 and 101,686.07 is: 140,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,168.50 : 245,876.49 = 101,686.07 : x
  2. Step 2: Convert to fraction form
    178,168.50/245,876.49 = 101,686.07/x
  3. Step 3: Cross multiply
    178,168.50x = 245,876.49 × 101,686.07
  4. Step 4: Simplify right side
    178,168.50x = 25,002,212,744.11
  5. Step 5: Solve for x
    x = 25,002,212,744.11/178,168.50
  6. Step 6: Final answer
    x = 140,329.03

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1.5x scale

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.