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Finding the Fourth Proportional to 245,423.94, 368,144.13 and 67,916.10

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Solution

The fourth proportional to 245,423.94, 368,144.13 and 67,916.10 is: 101,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.94 : 368,144.13 = 67,916.10 : x
  2. Step 2: Convert to fraction form
    245,423.94/368,144.13 = 67,916.10/x
  3. Step 3: Cross multiply
    245,423.94x = 368,144.13 × 67,916.10
  4. Step 4: Simplify right side
    245,423.94x = 25,002,913,547.49
  5. Step 5: Solve for x
    x = 25,002,913,547.49/245,423.94
  6. Step 6: Final answer
    x = 101,876.42

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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.