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Finding the Fourth Proportional to 22,278,082.20, 31,264,897.80 and 22,278,082.20

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Solution

The fourth proportional to 22,278,082.20, 31,264,897.80 and 22,278,082.20 is: 31,264,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278,082.20 : 31,264,897.80 = 22,278,082.20 : x
  2. Step 2: Convert to fraction form
    22,278,082.20/31,264,897.80 = 22,278,082.20/x
  3. Step 3: Cross multiply
    22,278,082.20x = 31,264,897.80 × 22,278,082.20
  4. Step 4: Simplify right side
    22,278,082.20x = 696,521,963,162,999.12
  5. Step 5: Solve for x
    x = 696,521,963,162,999.12/22,278,082.20
  6. Step 6: Final answer
    x = 31,264,897.80

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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.