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Finding the Fourth Proportional to 76,734,228.60, 115,101,342.90 and 76,734,228.60

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Solution

The fourth proportional to 76,734,228.60, 115,101,342.90 and 76,734,228.60 is: 115,101,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,734,228.60 : 115,101,342.90 = 76,734,228.60 : x
  2. Step 2: Convert to fraction form
    76,734,228.60/115,101,342.90 = 76,734,228.60/x
  3. Step 3: Cross multiply
    76,734,228.60x = 115,101,342.90 × 76,734,228.60
  4. Step 4: Simplify right side
    76,734,228.60x = 8,832,212,758,255,587
  5. Step 5: Solve for x
    x = 8,832,212,758,255,587/76,734,228.60
  6. Step 6: Final answer
    x = 115,101,342.90

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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.