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Finding the Fourth Proportional to 97,718.70, 146,599.56 and 55,618.59

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Solution

The fourth proportional to 97,718.70, 146,599.56 and 55,618.59 is: 83,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,718.70 : 146,599.56 = 55,618.59 : x
  2. Step 2: Convert to fraction form
    97,718.70/146,599.56 = 55,618.59/x
  3. Step 3: Cross multiply
    97,718.70x = 146,599.56 × 55,618.59
  4. Step 4: Simplify right side
    97,718.70x = 8,153,660,821.82
  5. Step 5: Solve for x
    x = 8,153,660,821.82/97,718.70
  6. Step 6: Final answer
    x = 83,440.13

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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.