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Finding the Fourth Proportional to 29,138,752.80, 40,853,973.60 and 29,138,752.80

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Solution

The fourth proportional to 29,138,752.80, 40,853,973.60 and 29,138,752.80 is: 40,853,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138,752.80 : 40,853,973.60 = 29,138,752.80 : x
  2. Step 2: Convert to fraction form
    29,138,752.80/40,853,973.60 = 29,138,752.80/x
  3. Step 3: Cross multiply
    29,138,752.80x = 40,853,973.60 × 29,138,752.80
  4. Step 4: Simplify right side
    29,138,752.80x = 1,190,433,837,628,126.25
  5. Step 5: Solve for x
    x = 1,190,433,837,628,126.25/29,138,752.80
  6. Step 6: Final answer
    x = 40,853,973.60

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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.