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Finding the Fourth Proportional to 202,043.70, 303,065.55 and 164,718.90

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Solution

The fourth proportional to 202,043.70, 303,065.55 and 164,718.90 is: 247,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,043.70 : 303,065.55 = 164,718.90 : x
  2. Step 2: Convert to fraction form
    202,043.70/303,065.55 = 164,718.90/x
  3. Step 3: Cross multiply
    202,043.70x = 303,065.55 × 164,718.90
  4. Step 4: Simplify right side
    202,043.70x = 49,920,624,023.90
  5. Step 5: Solve for x
    x = 49,920,624,023.90/202,043.70
  6. Step 6: Final answer
    x = 247,078.35

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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.