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Finding the Fourth Proportional to 141,752.38, 212,702.70 and 133,583.95

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Solution

The fourth proportional to 141,752.38, 212,702.70 and 133,583.95 is: 200,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,752.38 : 212,702.70 = 133,583.95 : x
  2. Step 2: Convert to fraction form
    141,752.38/212,702.70 = 133,583.95/x
  3. Step 3: Cross multiply
    141,752.38x = 212,702.70 × 133,583.95
  4. Step 4: Simplify right side
    141,752.38x = 28,413,666,841.67
  5. Step 5: Solve for x
    x = 28,413,666,841.67/141,752.38
  6. Step 6: Final answer
    x = 200,445.78

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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.