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Finding the Fourth Proportional to 608,040.70, 912,061.05 and 164,808.70

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Solution

The fourth proportional to 608,040.70, 912,061.05 and 164,808.70 is: 247,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,040.70 : 912,061.05 = 164,808.70 : x
  2. Step 2: Convert to fraction form
    608,040.70/912,061.05 = 164,808.70/x
  3. Step 3: Cross multiply
    608,040.70x = 912,061.05 × 164,808.70
  4. Step 4: Simplify right side
    608,040.70x = 150,315,595,971.14
  5. Step 5: Solve for x
    x = 150,315,595,971.14/608,040.70
  6. Step 6: Final answer
    x = 247,213.05

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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.