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Finding the Fourth Proportional to 269,720.80, 404,678.40 and 112,062.40

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Solution

The fourth proportional to 269,720.80, 404,678.40 and 112,062.40 is: 168,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,720.80 : 404,678.40 = 112,062.40 : x
  2. Step 2: Convert to fraction form
    269,720.80/404,678.40 = 112,062.40/x
  3. Step 3: Cross multiply
    269,720.80x = 404,678.40 × 112,062.40
  4. Step 4: Simplify right side
    269,720.80x = 45,349,232,732.16
  5. Step 5: Solve for x
    x = 45,349,232,732.16/269,720.80
  6. Step 6: Final answer
    x = 168,133.98

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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.