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Finding the Fourth Proportional to 343,021.40, 514,532.10 and 156,032.90

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Solution

The fourth proportional to 343,021.40, 514,532.10 and 156,032.90 is: 234,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,021.40 : 514,532.10 = 156,032.90 : x
  2. Step 2: Convert to fraction form
    343,021.40/514,532.10 = 156,032.90/x
  3. Step 3: Cross multiply
    343,021.40x = 514,532.10 × 156,032.90
  4. Step 4: Simplify right side
    343,021.40x = 80,283,935,706.09
  5. Step 5: Solve for x
    x = 80,283,935,706.09/343,021.40
  6. Step 6: Final answer
    x = 234,049.35

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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.