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Finding the Fourth Proportional to 267,661.61, 401,365.28 and 155,376.27

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Solution

The fourth proportional to 267,661.61, 401,365.28 and 155,376.27 is: 232,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,661.61 : 401,365.28 = 155,376.27 : x
  2. Step 2: Convert to fraction form
    267,661.61/401,365.28 = 155,376.27/x
  3. Step 3: Cross multiply
    267,661.61x = 401,365.28 × 155,376.27
  4. Step 4: Simplify right side
    267,661.61x = 62,362,638,495.52
  5. Step 5: Solve for x
    x = 62,362,638,495.52/267,661.61
  6. Step 6: Final answer
    x = 232,990.60

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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.