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Finding the Fourth Proportional to 424,718.40, 637,187.85 and 158,480.91

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Solution

The fourth proportional to 424,718.40, 637,187.85 and 158,480.91 is: 237,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,718.40 : 637,187.85 = 158,480.91 : x
  2. Step 2: Convert to fraction form
    424,718.40/637,187.85 = 158,480.91/x
  3. Step 3: Cross multiply
    424,718.40x = 637,187.85 × 158,480.91
  4. Step 4: Simplify right side
    424,718.40x = 100,982,110,308.94
  5. Step 5: Solve for x
    x = 100,982,110,308.94/424,718.40
  6. Step 6: Final answer
    x = 237,762.50

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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.