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Finding the Fourth Proportional to 356,507.77, 491,981.19 and 195,368.71

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Solution

The fourth proportional to 356,507.77, 491,981.19 and 195,368.71 is: 269,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,507.77 : 491,981.19 = 195,368.71 : x
  2. Step 2: Convert to fraction form
    356,507.77/491,981.19 = 195,368.71/x
  3. Step 3: Cross multiply
    356,507.77x = 491,981.19 × 195,368.71
  4. Step 4: Simplify right side
    356,507.77x = 96,117,730,434.56
  5. Step 5: Solve for x
    x = 96,117,730,434.56/356,507.77
  6. Step 6: Final answer
    x = 269,609.08

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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.