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Finding the Fourth Proportional to 98,366.76, 135,746.15 and 55,927.89

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Solution

The fourth proportional to 98,366.76, 135,746.15 and 55,927.89 is: 77,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,366.76 : 135,746.15 = 55,927.89 : x
  2. Step 2: Convert to fraction form
    98,366.76/135,746.15 = 55,927.89/x
  3. Step 3: Cross multiply
    98,366.76x = 135,746.15 × 55,927.89
  4. Step 4: Simplify right side
    98,366.76x = 7,591,995,465.48
  5. Step 5: Solve for x
    x = 7,591,995,465.48/98,366.76
  6. Step 6: Final answer
    x = 77,180.50

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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.