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Finding the Fourth Proportional to 424,681.44, 637,087.72 and 154,832.32

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Solution

The fourth proportional to 424,681.44, 637,087.72 and 154,832.32 is: 232,272.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,681.44 : 637,087.72 = 154,832.32 : x
  2. Step 2: Convert to fraction form
    424,681.44/637,087.72 = 154,832.32/x
  3. Step 3: Cross multiply
    424,681.44x = 637,087.72 × 154,832.32
  4. Step 4: Simplify right side
    424,681.44x = 98,641,769,731.11
  5. Step 5: Solve for x
    x = 98,641,769,731.11/424,681.44
  6. Step 6: Final answer
    x = 232,272.38

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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.