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Finding the Fourth Proportional to 256,061.69, 353,363.19 and 141,340.32

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Solution

The fourth proportional to 256,061.69, 353,363.19 and 141,340.32 is: 195,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,061.69 : 353,363.19 = 141,340.32 : x
  2. Step 2: Convert to fraction form
    256,061.69/353,363.19 = 141,340.32/x
  3. Step 3: Cross multiply
    256,061.69x = 353,363.19 × 141,340.32
  4. Step 4: Simplify right side
    256,061.69x = 49,944,466,350.82
  5. Step 5: Solve for x
    x = 49,944,466,350.82/256,061.69
  6. Step 6: Final answer
    x = 195,048.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.