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Finding the Fourth Proportional to 93,834.32, 129,490.11 and 51,392.88

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Solution

The fourth proportional to 93,834.32, 129,490.11 and 51,392.88 is: 70,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,834.32 : 129,490.11 = 51,392.88 : x
  2. Step 2: Convert to fraction form
    93,834.32/129,490.11 = 51,392.88/x
  3. Step 3: Cross multiply
    93,834.32x = 129,490.11 × 51,392.88
  4. Step 4: Simplify right side
    93,834.32x = 6,654,869,684.42
  5. Step 5: Solve for x
    x = 6,654,869,684.42/93,834.32
  6. Step 6: Final answer
    x = 70,921.49

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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.