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Finding the Fourth Proportional to 267,661.36, 401,364.91 and 155,376.02

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Solution

The fourth proportional to 267,661.36, 401,364.91 and 155,376.02 is: 232,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,661.36 : 401,364.91 = 155,376.02 : x
  2. Step 2: Convert to fraction form
    267,661.36/401,364.91 = 155,376.02/x
  3. Step 3: Cross multiply
    267,661.36x = 401,364.91 × 155,376.02
  4. Step 4: Simplify right side
    267,661.36x = 62,362,479,888.19
  5. Step 5: Solve for x
    x = 62,362,479,888.19/267,661.36
  6. Step 6: Final answer
    x = 232,990.22

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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.