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Finding the Fourth Proportional to 93,672.17, 129,282.90 and 69,632.81

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Solution

The fourth proportional to 93,672.17, 129,282.90 and 69,632.81 is: 96,104.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,672.17 : 129,282.90 = 69,632.81 : x
  2. Step 2: Convert to fraction form
    93,672.17/129,282.90 = 69,632.81/x
  3. Step 3: Cross multiply
    93,672.17x = 129,282.90 × 69,632.81
  4. Step 4: Simplify right side
    93,672.17x = 9,002,331,611.95
  5. Step 5: Solve for x
    x = 9,002,331,611.95/93,672.17
  6. Step 6: Final answer
    x = 96,104.66

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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.