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Finding the Fourth Proportional to 148,910.40, 208,008 and 148,910.40

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Solution

The fourth proportional to 148,910.40, 208,008 and 148,910.40 is: 208,008

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,910.40 : 208,008 = 148,910.40 : x
  2. Step 2: Convert to fraction form
    148,910.40/208,008 = 148,910.40/x
  3. Step 3: Cross multiply
    148,910.40x = 208,008 × 148,910.40
  4. Step 4: Simplify right side
    148,910.40x = 30,974,554,483.20
  5. Step 5: Solve for x
    x = 30,974,554,483.20/148,910.40
  6. Step 6: Final answer
    x = 208,008

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1.5x scale

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.