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Finding the Fourth Proportional to 216,902.70, 325,354.05 and 216,902.70

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Solution

The fourth proportional to 216,902.70, 325,354.05 and 216,902.70 is: 325,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,902.70 : 325,354.05 = 216,902.70 : x
  2. Step 2: Convert to fraction form
    216,902.70/325,354.05 = 216,902.70/x
  3. Step 3: Cross multiply
    216,902.70x = 325,354.05 × 216,902.70
  4. Step 4: Simplify right side
    216,902.70x = 70,570,171,900.94
  5. Step 5: Solve for x
    x = 70,570,171,900.94/216,902.70
  6. Step 6: Final answer
    x = 325,354.05

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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.