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Finding the Fourth Proportional to 235,599.68, 353,142.48 and 115,739.12

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Solution

The fourth proportional to 235,599.68, 353,142.48 and 115,739.12 is: 173,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,599.68 : 353,142.48 = 115,739.12 : x
  2. Step 2: Convert to fraction form
    235,599.68/353,142.48 = 115,739.12/x
  3. Step 3: Cross multiply
    235,599.68x = 353,142.48 × 115,739.12
  4. Step 4: Simplify right side
    235,599.68x = 40,872,399,869.82
  5. Step 5: Solve for x
    x = 40,872,399,869.82/235,599.68
  6. Step 6: Final answer
    x = 173,482.41

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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.