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Finding the Fourth Proportional to 359,297.17, 495,971.81 and 216,029.53

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Solution

The fourth proportional to 359,297.17, 495,971.81 and 216,029.53 is: 298,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,297.17 : 495,971.81 = 216,029.53 : x
  2. Step 2: Convert to fraction form
    359,297.17/495,971.81 = 216,029.53/x
  3. Step 3: Cross multiply
    359,297.17x = 495,971.81 × 216,029.53
  4. Step 4: Simplify right side
    359,297.17x = 107,144,557,357.48
  5. Step 5: Solve for x
    x = 107,144,557,357.48/359,297.17
  6. Step 6: Final answer
    x = 298,205.96

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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.