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Finding the Fourth Proportional to 93,573.64, 129,086.52 and 68,040.40

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Solution

The fourth proportional to 93,573.64, 129,086.52 and 68,040.40 is: 93,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,573.64 : 129,086.52 = 68,040.40 : x
  2. Step 2: Convert to fraction form
    93,573.64/129,086.52 = 68,040.40/x
  3. Step 3: Cross multiply
    93,573.64x = 129,086.52 × 68,040.40
  4. Step 4: Simplify right side
    93,573.64x = 8,783,098,455.41
  5. Step 5: Solve for x
    x = 8,783,098,455.41/93,573.64
  6. Step 6: Final answer
    x = 93,862.96

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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.