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Finding the Fourth Proportional to 73,116.49, 100,894.62 and 42,898.63

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Solution

The fourth proportional to 73,116.49, 100,894.62 and 42,898.63 is: 59,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,116.49 : 100,894.62 = 42,898.63 : x
  2. Step 2: Convert to fraction form
    73,116.49/100,894.62 = 42,898.63/x
  3. Step 3: Cross multiply
    73,116.49x = 100,894.62 × 42,898.63
  4. Step 4: Simplify right side
    73,116.49x = 4,328,240,972.37
  5. Step 5: Solve for x
    x = 4,328,240,972.37/73,116.49
  6. Step 6: Final answer
    x = 59,196.51

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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.