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Finding the Fourth Proportional to 98,585.66, 147,933.84 and 39,425.94

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Solution

The fourth proportional to 98,585.66, 147,933.84 and 39,425.94 is: 59,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,585.66 : 147,933.84 = 39,425.94 : x
  2. Step 2: Convert to fraction form
    98,585.66/147,933.84 = 39,425.94/x
  3. Step 3: Cross multiply
    98,585.66x = 147,933.84 × 39,425.94
  4. Step 4: Simplify right side
    98,585.66x = 5,832,430,847.66
  5. Step 5: Solve for x
    x = 5,832,430,847.66/98,585.66
  6. Step 6: Final answer
    x = 59,161.05

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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.