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Finding the Fourth Proportional to 221,480,013.40, 332,220,020.10 and 221,480,013.40

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Solution

The fourth proportional to 221,480,013.40, 332,220,020.10 and 221,480,013.40 is: 332,220,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,480,013.40 : 332,220,020.10 = 221,480,013.40 : x
  2. Step 2: Convert to fraction form
    221,480,013.40/332,220,020.10 = 221,480,013.40/x
  3. Step 3: Cross multiply
    221,480,013.40x = 332,220,020.10 × 221,480,013.40
  4. Step 4: Simplify right side
    221,480,013.40x = 73,580,094,503,496,272
  5. Step 5: Solve for x
    x = 73,580,094,503,496,272/221,480,013.40
  6. Step 6: Final answer
    x = 332,220,020.10

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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.