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Finding the Fourth Proportional to 281,808,047.70, 422,712,071.55 and 281,808,047.70

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Solution

The fourth proportional to 281,808,047.70, 422,712,071.55 and 281,808,047.70 is: 422,712,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,808,047.70 : 422,712,071.55 = 281,808,047.70 : x
  2. Step 2: Convert to fraction form
    281,808,047.70/422,712,071.55 = 281,808,047.70/x
  3. Step 3: Cross multiply
    281,808,047.70x = 422,712,071.55 × 281,808,047.70
  4. Step 4: Simplify right side
    281,808,047.70x = 119,123,663,622,728,208
  5. Step 5: Solve for x
    x = 119,123,663,622,728,208/281,808,047.70
  6. Step 6: Final answer
    x = 422,712,071.55

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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.