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Finding the Fourth Proportional to 158,879,793.88, 219,256,737.78 and 87,355,697.32

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Solution

The fourth proportional to 158,879,793.88, 219,256,737.78 and 87,355,697.32 is: 120,552,304.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,879,793.88 : 219,256,737.78 = 87,355,697.32 : x
  2. Step 2: Convert to fraction form
    158,879,793.88/219,256,737.78 = 87,355,697.32/x
  3. Step 3: Cross multiply
    158,879,793.88x = 219,256,737.78 × 87,355,697.32
  4. Step 4: Simplify right side
    158,879,793.88x = 19,153,325,220,880,288
  5. Step 5: Solve for x
    x = 19,153,325,220,880,288/158,879,793.88
  6. Step 6: Final answer
    x = 120,552,304.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.