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Finding the Fourth Proportional to 343,040.67, 514,561.01 and 156,105.63

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Solution

The fourth proportional to 343,040.67, 514,561.01 and 156,105.63 is: 234,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,040.67 : 514,561.01 = 156,105.63 : x
  2. Step 2: Convert to fraction form
    343,040.67/514,561.01 = 156,105.63/x
  3. Step 3: Cross multiply
    343,040.67x = 514,561.01 × 156,105.63
  4. Step 4: Simplify right side
    343,040.67x = 80,325,869,858.96
  5. Step 5: Solve for x
    x = 80,325,869,858.96/343,040.67
  6. Step 6: Final answer
    x = 234,158.45

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1.5x scale

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.