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Finding the Fourth Proportional to 29,105,920.80, 40,808,008.80 and 29,105,920.80

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Solution

The fourth proportional to 29,105,920.80, 40,808,008.80 and 29,105,920.80 is: 40,808,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,105,920.80 : 40,808,008.80 = 29,105,920.80 : x
  2. Step 2: Convert to fraction form
    29,105,920.80/40,808,008.80 = 29,105,920.80/x
  3. Step 3: Cross multiply
    29,105,920.80x = 40,808,008.80 × 29,105,920.80
  4. Step 4: Simplify right side
    29,105,920.80x = 1,187,754,672,138,503
  5. Step 5: Solve for x
    x = 1,187,754,672,138,503/29,105,920.80
  6. Step 6: Final answer
    x = 40,808,008.80

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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.