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Finding the Fourth Proportional to 267,970.77, 401,430.65 and 155,414.59

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Solution

The fourth proportional to 267,970.77, 401,430.65 and 155,414.59 is: 232,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,970.77 : 401,430.65 = 155,414.59 : x
  2. Step 2: Convert to fraction form
    267,970.77/401,430.65 = 155,414.59/x
  3. Step 3: Cross multiply
    267,970.77x = 401,430.65 × 155,414.59
  4. Step 4: Simplify right side
    267,970.77x = 62,388,179,883.18
  5. Step 5: Solve for x
    x = 62,388,179,883.18/267,970.77
  6. Step 6: Final answer
    x = 232,817.11

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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.