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Finding the Fourth Proportional to 543,531.95, 815,044.81 and 201,737.35

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Solution

The fourth proportional to 543,531.95, 815,044.81 and 201,737.35 is: 302,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,531.95 : 815,044.81 = 201,737.35 : x
  2. Step 2: Convert to fraction form
    543,531.95/815,044.81 = 201,737.35/x
  3. Step 3: Cross multiply
    543,531.95x = 815,044.81 × 201,737.35
  4. Step 4: Simplify right side
    543,531.95x = 164,424,980,100.65
  5. Step 5: Solve for x
    x = 164,424,980,100.65/543,531.95
  6. Step 6: Final answer
    x = 302,512.08

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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.