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Finding the Fourth Proportional to 269,970.57, 404,955.86 and 103,641.93

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Solution

The fourth proportional to 269,970.57, 404,955.86 and 103,641.93 is: 155,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,970.57 : 404,955.86 = 103,641.93 : x
  2. Step 2: Convert to fraction form
    269,970.57/404,955.86 = 103,641.93/x
  3. Step 3: Cross multiply
    269,970.57x = 404,955.86 × 103,641.93
  4. Step 4: Simplify right side
    269,970.57x = 41,970,406,377.00
  5. Step 5: Solve for x
    x = 41,970,406,377.00/269,970.57
  6. Step 6: Final answer
    x = 155,462.90

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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.