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Finding the Fourth Proportional to 202,315.70, 303,473.55 and 69,200.30

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Solution

The fourth proportional to 202,315.70, 303,473.55 and 69,200.30 is: 103,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,315.70 : 303,473.55 = 69,200.30 : x
  2. Step 2: Convert to fraction form
    202,315.70/303,473.55 = 69,200.30/x
  3. Step 3: Cross multiply
    202,315.70x = 303,473.55 × 69,200.30
  4. Step 4: Simplify right side
    202,315.70x = 21,000,460,702.07
  5. Step 5: Solve for x
    x = 21,000,460,702.07/202,315.70
  6. Step 6: Final answer
    x = 103,800.45

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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.