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Finding the Fourth Proportional to 93,159.36, 140,366.75 and 76,883.94

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Solution

The fourth proportional to 93,159.36, 140,366.75 and 76,883.94 is: 115,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,159.36 : 140,366.75 = 76,883.94 : x
  2. Step 2: Convert to fraction form
    93,159.36/140,366.75 = 76,883.94/x
  3. Step 3: Cross multiply
    93,159.36x = 140,366.75 × 76,883.94
  4. Step 4: Simplify right side
    93,159.36x = 10,791,948,400.58
  5. Step 5: Solve for x
    x = 10,791,948,400.58/93,159.36
  6. Step 6: Final answer
    x = 115,843.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.