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Finding the Fourth Proportional to 424,466.64, 636,480.88 and 124,908.32

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Solution

The fourth proportional to 424,466.64, 636,480.88 and 124,908.32 is: 187,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,466.64 : 636,480.88 = 124,908.32 : x
  2. Step 2: Convert to fraction form
    424,466.64/636,480.88 = 124,908.32/x
  3. Step 3: Cross multiply
    424,466.64x = 636,480.88 × 124,908.32
  4. Step 4: Simplify right side
    424,466.64x = 79,501,757,432.92
  5. Step 5: Solve for x
    x = 79,501,757,432.92/424,466.64
  6. Step 6: Final answer
    x = 187,298.01

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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.