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Finding the Fourth Proportional to 29,142,806.80, 40,859,649.20 and 29,142,806.80

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Solution

The fourth proportional to 29,142,806.80, 40,859,649.20 and 29,142,806.80 is: 40,859,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142,806.80 : 40,859,649.20 = 29,142,806.80 : x
  2. Step 2: Convert to fraction form
    29,142,806.80/40,859,649.20 = 29,142,806.80/x
  3. Step 3: Cross multiply
    29,142,806.80x = 40,859,649.20 × 29,142,806.80
  4. Step 4: Simplify right side
    29,142,806.80x = 1,190,764,862,551,374.75
  5. Step 5: Solve for x
    x = 1,190,764,862,551,374.75/29,142,806.80
  6. Step 6: Final answer
    x = 40,859,649.20

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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.