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Finding the Fourth Proportional to 220,302.70, 330,454.05 and 141,570.70

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Solution

The fourth proportional to 220,302.70, 330,454.05 and 141,570.70 is: 212,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,302.70 : 330,454.05 = 141,570.70 : x
  2. Step 2: Convert to fraction form
    220,302.70/330,454.05 = 141,570.70/x
  3. Step 3: Cross multiply
    220,302.70x = 330,454.05 × 141,570.70
  4. Step 4: Simplify right side
    220,302.70x = 46,782,611,176.34
  5. Step 5: Solve for x
    x = 46,782,611,176.34/220,302.70
  6. Step 6: Final answer
    x = 212,356.05

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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.