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Finding the Fourth Proportional to 53,154,808.80, 74,467,120.80 and 53,154,808.80

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Solution

The fourth proportional to 53,154,808.80, 74,467,120.80 and 53,154,808.80 is: 74,467,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,154,808.80 : 74,467,120.80 = 53,154,808.80 : x
  2. Step 2: Convert to fraction form
    53,154,808.80/74,467,120.80 = 53,154,808.80/x
  3. Step 3: Cross multiply
    53,154,808.80x = 74,467,120.80 × 53,154,808.80
  4. Step 4: Simplify right side
    53,154,808.80x = 3,958,285,568,010,502.50
  5. Step 5: Solve for x
    x = 3,958,285,568,010,502.50/53,154,808.80
  6. Step 6: Final answer
    x = 74,467,120.80

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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.