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Finding the Fourth Proportional to 52,205,640.60, 78,308,460.90 and 52,205,640.60

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Solution

The fourth proportional to 52,205,640.60, 78,308,460.90 and 52,205,640.60 is: 78,308,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,205,640.60 : 78,308,460.90 = 52,205,640.60 : x
  2. Step 2: Convert to fraction form
    52,205,640.60/78,308,460.90 = 52,205,640.60/x
  3. Step 3: Cross multiply
    52,205,640.60x = 78,308,460.90 × 52,205,640.60
  4. Step 4: Simplify right side
    52,205,640.60x = 4,088,143,365,684,553
  5. Step 5: Solve for x
    x = 4,088,143,365,684,553/52,205,640.60
  6. Step 6: Final answer
    x = 78,308,460.90

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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.