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Finding the Fourth Proportional to 608,405.58, 912,538.66 and 159,169.81

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Solution

The fourth proportional to 608,405.58, 912,538.66 and 159,169.81 is: 238,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,405.58 : 912,538.66 = 159,169.81 : x
  2. Step 2: Convert to fraction form
    608,405.58/912,538.66 = 159,169.81/x
  3. Step 3: Cross multiply
    608,405.58x = 912,538.66 × 159,169.81
  4. Step 4: Simplify right side
    608,405.58x = 145,248,605,129.86
  5. Step 5: Solve for x
    x = 145,248,605,129.86/608,405.58
  6. Step 6: Final answer
    x = 238,736.48

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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.