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Finding the Fourth Proportional to 325,111.95, 487,740.59 and 156,773.87

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Solution

The fourth proportional to 325,111.95, 487,740.59 and 156,773.87 is: 235,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,111.95 : 487,740.59 = 156,773.87 : x
  2. Step 2: Convert to fraction form
    325,111.95/487,740.59 = 156,773.87/x
  3. Step 3: Cross multiply
    325,111.95x = 487,740.59 × 156,773.87
  4. Step 4: Simplify right side
    325,111.95x = 76,464,976,627.81
  5. Step 5: Solve for x
    x = 76,464,976,627.81/325,111.95
  6. Step 6: Final answer
    x = 235,195.84

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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.