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Finding the Fourth Proportional to 141,896.71, 212,838.90 and 35,278.45

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Solution

The fourth proportional to 141,896.71, 212,838.90 and 35,278.45 is: 52,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,896.71 : 212,838.90 = 35,278.45 : x
  2. Step 2: Convert to fraction form
    141,896.71/212,838.90 = 35,278.45/x
  3. Step 3: Cross multiply
    141,896.71x = 212,838.90 × 35,278.45
  4. Step 4: Simplify right side
    141,896.71x = 7,508,626,491.71
  5. Step 5: Solve for x
    x = 7,508,626,491.71/141,896.71
  6. Step 6: Final answer
    x = 52,916.14

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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.