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Finding the Fourth Proportional to 206,830.70, 310,246.06 and 206,830.70

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Solution

The fourth proportional to 206,830.70, 310,246.06 and 206,830.70 is: 310,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,830.70 : 310,246.06 = 206,830.70 : x
  2. Step 2: Convert to fraction form
    206,830.70/310,246.06 = 206,830.70/x
  3. Step 3: Cross multiply
    206,830.70x = 310,246.06 × 206,830.70
  4. Step 4: Simplify right side
    206,830.70x = 64,168,409,762.04
  5. Step 5: Solve for x
    x = 64,168,409,762.04/206,830.70
  6. Step 6: Final answer
    x = 310,246.06

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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.