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Finding the Fourth Proportional to 61,393.16, 84,721.94 and 34,168.79

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Solution

The fourth proportional to 61,393.16, 84,721.94 and 34,168.79 is: 47,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,393.16 : 84,721.94 = 34,168.79 : x
  2. Step 2: Convert to fraction form
    61,393.16/84,721.94 = 34,168.79/x
  3. Step 3: Cross multiply
    61,393.16x = 84,721.94 × 34,168.79
  4. Step 4: Simplify right side
    61,393.16x = 2,894,845,838.06
  5. Step 5: Solve for x
    x = 2,894,845,838.06/61,393.16
  6. Step 6: Final answer
    x = 47,152.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.