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Finding the Fourth Proportional to 119,876,859.86, 179,742,474.81 and 47,006,340.62

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Solution

The fourth proportional to 119,876,859.86, 179,742,474.81 and 47,006,340.62 is: 70,480,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,876,859.86 : 179,742,474.81 = 47,006,340.62 : x
  2. Step 2: Convert to fraction form
    119,876,859.86/179,742,474.81 = 47,006,340.62/x
  3. Step 3: Cross multiply
    119,876,859.86x = 179,742,474.81 × 47,006,340.62
  4. Step 4: Simplify right side
    119,876,859.86x = 8,449,035,994,800,629
  5. Step 5: Solve for x
    x = 8,449,035,994,800,629/119,876,859.86
  6. Step 6: Final answer
    x = 70,480,958.58

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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.