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Finding the Fourth Proportional to 374,039.70, 516,167.82 and 210,696.72

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Solution

The fourth proportional to 374,039.70, 516,167.82 and 210,696.72 is: 290,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,039.70 : 516,167.82 = 210,696.72 : x
  2. Step 2: Convert to fraction form
    374,039.70/516,167.82 = 210,696.72/x
  3. Step 3: Cross multiply
    374,039.70x = 516,167.82 × 210,696.72
  4. Step 4: Simplify right side
    374,039.70x = 108,754,866,643.55
  5. Step 5: Solve for x
    x = 108,754,866,643.55/374,039.70
  6. Step 6: Final answer
    x = 290,757.55

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Why These Related Problems?

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