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Finding the Fourth Proportional to 99,750.42, 149,680.71 and 40,627.71

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Solution

The fourth proportional to 99,750.42, 149,680.71 and 40,627.71 is: 60,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,750.42 : 149,680.71 = 40,627.71 : x
  2. Step 2: Convert to fraction form
    99,750.42/149,680.71 = 40,627.71/x
  3. Step 3: Cross multiply
    99,750.42x = 149,680.71 × 40,627.71
  4. Step 4: Simplify right side
    99,750.42x = 6,081,184,478.47
  5. Step 5: Solve for x
    x = 6,081,184,478.47/99,750.42
  6. Step 6: Final answer
    x = 60,964.00

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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.