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Finding the Fourth Proportional to 93,707.64, 129,395.34 and 66,932.28

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Solution

The fourth proportional to 93,707.64, 129,395.34 and 66,932.28 is: 92,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,707.64 : 129,395.34 = 66,932.28 : x
  2. Step 2: Convert to fraction form
    93,707.64/129,395.34 = 66,932.28/x
  3. Step 3: Cross multiply
    93,707.64x = 129,395.34 × 66,932.28
  4. Step 4: Simplify right side
    93,707.64x = 8,660,725,127.58
  5. Step 5: Solve for x
    x = 8,660,725,127.58/93,707.64
  6. Step 6: Final answer
    x = 92,422.83

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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.