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Finding the Fourth Proportional to 112,237.50, 154,887.95 and 61,936.50

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Solution

The fourth proportional to 112,237.50, 154,887.95 and 61,936.50 is: 85,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,237.50 : 154,887.95 = 61,936.50 : x
  2. Step 2: Convert to fraction form
    112,237.50/154,887.95 = 61,936.50/x
  3. Step 3: Cross multiply
    112,237.50x = 154,887.95 × 61,936.50
  4. Step 4: Simplify right side
    112,237.50x = 9,593,217,670.02
  5. Step 5: Solve for x
    x = 9,593,217,670.02/112,237.50
  6. Step 6: Final answer
    x = 85,472.48

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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.