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Finding the Fourth Proportional to 115,907,793.60, 173,861,690.40 and 52,206,801.60

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Solution

The fourth proportional to 115,907,793.60, 173,861,690.40 and 52,206,801.60 is: 78,310,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,907,793.60 : 173,861,690.40 = 52,206,801.60 : x
  2. Step 2: Convert to fraction form
    115,907,793.60/173,861,690.40 = 52,206,801.60/x
  3. Step 3: Cross multiply
    115,907,793.60x = 173,861,690.40 × 52,206,801.60
  4. Step 4: Simplify right side
    115,907,793.60x = 9,076,762,776,553,426
  5. Step 5: Solve for x
    x = 9,076,762,776,553,426/115,907,793.60
  6. Step 6: Final answer
    x = 78,310,202.40

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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.