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Finding the Fourth Proportional to 79,182,003.65, 111,005,970.55 and 79,182,003.65

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Solution

The fourth proportional to 79,182,003.65, 111,005,970.55 and 79,182,003.65 is: 111,005,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182,003.65 : 111,005,970.55 = 79,182,003.65 : x
  2. Step 2: Convert to fraction form
    79,182,003.65/111,005,970.55 = 79,182,003.65/x
  3. Step 3: Cross multiply
    79,182,003.65x = 111,005,970.55 × 79,182,003.65
  4. Step 4: Simplify right side
    79,182,003.65x = 8,789,675,165,261,893
  5. Step 5: Solve for x
    x = 8,789,675,165,261,893/79,182,003.65
  6. Step 6: Final answer
    x = 111,005,970.55

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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.