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Finding the Fourth Proportional to 70,859,856.30, 106,100,827.65 and 70,859,856.30

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Solution

The fourth proportional to 70,859,856.30, 106,100,827.65 and 70,859,856.30 is: 106,100,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,859,856.30 : 106,100,827.65 = 70,859,856.30 : x
  2. Step 2: Convert to fraction form
    70,859,856.30/106,100,827.65 = 70,859,856.30/x
  3. Step 3: Cross multiply
    70,859,856.30x = 106,100,827.65 × 70,859,856.30
  4. Step 4: Simplify right side
    70,859,856.30x = 7,518,289,400,590,067
  5. Step 5: Solve for x
    x = 7,518,289,400,590,067/70,859,856.30
  6. Step 6: Final answer
    x = 106,100,827.65

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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.