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Finding the Fourth Proportional to 141,881.16, 212,822.51 and 42,042.21

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Solution

The fourth proportional to 141,881.16, 212,822.51 and 42,042.21 is: 63,063.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,881.16 : 212,822.51 = 42,042.21 : x
  2. Step 2: Convert to fraction form
    141,881.16/212,822.51 = 42,042.21/x
  3. Step 3: Cross multiply
    141,881.16x = 212,822.51 × 42,042.21
  4. Step 4: Simplify right side
    141,881.16x = 8,947,528,658.15
  5. Step 5: Solve for x
    x = 8,947,528,658.15/141,881.16
  6. Step 6: Final answer
    x = 63,063.54

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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.