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Finding the Fourth Proportional to 76,810,367.70, 115,215,551.55 and 76,810,367.70

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Solution

The fourth proportional to 76,810,367.70, 115,215,551.55 and 76,810,367.70 is: 115,215,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,810,367.70 : 115,215,551.55 = 76,810,367.70 : x
  2. Step 2: Convert to fraction form
    76,810,367.70/115,215,551.55 = 76,810,367.70/x
  3. Step 3: Cross multiply
    76,810,367.70x = 115,215,551.55 × 76,810,367.70
  4. Step 4: Simplify right side
    76,810,367.70x = 8,849,748,879,313,805
  5. Step 5: Solve for x
    x = 8,849,748,879,313,805/76,810,367.70
  6. Step 6: Final answer
    x = 115,215,551.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.