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Finding the Fourth Proportional to 93,775.44, 129,470.40 and 83,686.56

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Solution

The fourth proportional to 93,775.44, 129,470.40 and 83,686.56 is: 115,541.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,775.44 : 129,470.40 = 83,686.56 : x
  2. Step 2: Convert to fraction form
    93,775.44/129,470.40 = 83,686.56/x
  3. Step 3: Cross multiply
    93,775.44x = 129,470.40 × 83,686.56
  4. Step 4: Simplify right side
    93,775.44x = 10,834,932,397.82
  5. Step 5: Solve for x
    x = 10,834,932,397.82/93,775.44
  6. Step 6: Final answer
    x = 115,541.26

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1.5x scale

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.