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Finding the Fourth Proportional to 608,406.54, 912,540.08 and 159,170.76

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Solution

The fourth proportional to 608,406.54, 912,540.08 and 159,170.76 is: 238,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,406.54 : 912,540.08 = 159,170.76 : x
  2. Step 2: Convert to fraction form
    608,406.54/912,540.08 = 159,170.76/x
  3. Step 3: Cross multiply
    608,406.54x = 912,540.08 × 159,170.76
  4. Step 4: Simplify right side
    608,406.54x = 145,249,697,268.21
  5. Step 5: Solve for x
    x = 145,249,697,268.21/608,406.54
  6. Step 6: Final answer
    x = 238,737.90

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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.