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Finding the Fourth Proportional to 269,429.30, 404,111.55 and 111,641.30

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Solution

The fourth proportional to 269,429.30, 404,111.55 and 111,641.30 is: 167,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,429.30 : 404,111.55 = 111,641.30 : x
  2. Step 2: Convert to fraction form
    269,429.30/404,111.55 = 111,641.30/x
  3. Step 3: Cross multiply
    269,429.30x = 404,111.55 × 111,641.30
  4. Step 4: Simplify right side
    269,429.30x = 45,115,538,787.02
  5. Step 5: Solve for x
    x = 45,115,538,787.02/269,429.30
  6. Step 6: Final answer
    x = 167,448.52

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1.5x scale

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.