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Finding the Fourth Proportional to 98,065.76, 135,332.20 and 94,671.58

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Solution

The fourth proportional to 98,065.76, 135,332.20 and 94,671.58 is: 130,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,065.76 : 135,332.20 = 94,671.58 : x
  2. Step 2: Convert to fraction form
    98,065.76/135,332.20 = 94,671.58/x
  3. Step 3: Cross multiply
    98,065.76x = 135,332.20 × 94,671.58
  4. Step 4: Simplify right side
    98,065.76x = 12,812,113,198.88
  5. Step 5: Solve for x
    x = 12,812,113,198.88/98,065.76
  6. Step 6: Final answer
    x = 130,648.18

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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.