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Finding the Fourth Proportional to 148,908.40, 208,005.20 and 148,908.40

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Solution

The fourth proportional to 148,908.40, 208,005.20 and 148,908.40 is: 208,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,908.40 : 208,005.20 = 148,908.40 : x
  2. Step 2: Convert to fraction form
    148,908.40/208,005.20 = 148,908.40/x
  3. Step 3: Cross multiply
    148,908.40x = 208,005.20 × 148,908.40
  4. Step 4: Simplify right side
    148,908.40x = 30,973,721,523.68
  5. Step 5: Solve for x
    x = 30,973,721,523.68/148,908.40
  6. Step 6: Final answer
    x = 208,005.20

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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.