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Finding the Fourth Proportional to 282,693, 424,040.22 and 85,701

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Solution

The fourth proportional to 282,693, 424,040.22 and 85,701 is: 128,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,693 : 424,040.22 = 85,701 : x
  2. Step 2: Convert to fraction form
    282,693/424,040.22 = 85,701/x
  3. Step 3: Cross multiply
    282,693x = 424,040.22 × 85,701
  4. Step 4: Simplify right side
    282,693x = 36,340,670,894.22
  5. Step 5: Solve for x
    x = 36,340,670,894.22/282,693
  6. Step 6: Final answer
    x = 128,551.72

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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.