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Finding the Fourth Proportional to 424,963.77, 637,492.35 and 140,550.72

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Solution

The fourth proportional to 424,963.77, 637,492.35 and 140,550.72 is: 210,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,963.77 : 637,492.35 = 140,550.72 : x
  2. Step 2: Convert to fraction form
    424,963.77/637,492.35 = 140,550.72/x
  3. Step 3: Cross multiply
    424,963.77x = 637,492.35 × 140,550.72
  4. Step 4: Simplify right side
    424,963.77x = 89,600,004,896.78
  5. Step 5: Solve for x
    x = 89,600,004,896.78/424,963.77
  6. Step 6: Final answer
    x = 210,841.52

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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.