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Finding the Fourth Proportional to 269,681.40, 404,667.90 and 111,925.80

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Solution

The fourth proportional to 269,681.40, 404,667.90 and 111,925.80 is: 167,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,681.40 : 404,667.90 = 111,925.80 : x
  2. Step 2: Convert to fraction form
    269,681.40/404,667.90 = 111,925.80/x
  3. Step 3: Cross multiply
    269,681.40x = 404,667.90 × 111,925.80
  4. Step 4: Simplify right side
    269,681.40x = 45,292,778,441.82
  5. Step 5: Solve for x
    x = 45,292,778,441.82/269,681.40
  6. Step 6: Final answer
    x = 167,949.21

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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.