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Finding the Fourth Proportional to 99,592.89, 149,388.78 and 57,445.65

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Solution

The fourth proportional to 99,592.89, 149,388.78 and 57,445.65 is: 86,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,592.89 : 149,388.78 = 57,445.65 : x
  2. Step 2: Convert to fraction form
    99,592.89/149,388.78 = 57,445.65/x
  3. Step 3: Cross multiply
    99,592.89x = 149,388.78 × 57,445.65
  4. Step 4: Simplify right side
    99,592.89x = 8,581,735,569.81
  5. Step 5: Solve for x
    x = 8,581,735,569.81/99,592.89
  6. Step 6: Final answer
    x = 86,168.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.