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Finding the Fourth Proportional to 53,155,216.30, 74,467,691.30 and 53,155,216.30

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Solution

The fourth proportional to 53,155,216.30, 74,467,691.30 and 53,155,216.30 is: 74,467,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,155,216.30 : 74,467,691.30 = 53,155,216.30 : x
  2. Step 2: Convert to fraction form
    53,155,216.30/74,467,691.30 = 53,155,216.30/x
  3. Step 3: Cross multiply
    53,155,216.30x = 74,467,691.30 × 53,155,216.30
  4. Step 4: Simplify right side
    53,155,216.30x = 3,958,346,238,413,128
  5. Step 5: Solve for x
    x = 3,958,346,238,413,128/53,155,216.30
  6. Step 6: Final answer
    x = 74,467,691.30

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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.