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Finding the Fourth Proportional to 146,838.70, 205,988.90 and 146,838.70

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Solution

The fourth proportional to 146,838.70, 205,988.90 and 146,838.70 is: 205,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,838.70 : 205,988.90 = 146,838.70 : x
  2. Step 2: Convert to fraction form
    146,838.70/205,988.90 = 146,838.70/x
  3. Step 3: Cross multiply
    146,838.70x = 205,988.90 × 146,838.70
  4. Step 4: Simplify right side
    146,838.70x = 30,247,142,290.43
  5. Step 5: Solve for x
    x = 30,247,142,290.43/146,838.70
  6. Step 6: Final answer
    x = 205,988.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.