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Finding the Fourth Proportional to 132,881.89, 199,342.91 and 42,894.53

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Solution

The fourth proportional to 132,881.89, 199,342.91 and 42,894.53 is: 64,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,881.89 : 199,342.91 = 42,894.53 : x
  2. Step 2: Convert to fraction form
    132,881.89/199,342.91 = 42,894.53/x
  3. Step 3: Cross multiply
    132,881.89x = 199,342.91 × 42,894.53
  4. Step 4: Simplify right side
    132,881.89x = 8,550,721,038.88
  5. Step 5: Solve for x
    x = 8,550,721,038.88/132,881.89
  6. Step 6: Final answer
    x = 64,348.28

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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.