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Finding the Fourth Proportional to 169,812.30, 254,718.45 and 155,297.10

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Solution

The fourth proportional to 169,812.30, 254,718.45 and 155,297.10 is: 232,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,812.30 : 254,718.45 = 155,297.10 : x
  2. Step 2: Convert to fraction form
    169,812.30/254,718.45 = 155,297.10/x
  3. Step 3: Cross multiply
    169,812.30x = 254,718.45 × 155,297.10
  4. Step 4: Simplify right side
    169,812.30x = 39,557,036,601.50
  5. Step 5: Solve for x
    x = 39,557,036,601.50/169,812.30
  6. Step 6: Final answer
    x = 232,945.65

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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.