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Finding the Fourth Proportional to 565,517,985.85, 848,276,978.78 and 156,574,136.35

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Solution

The fourth proportional to 565,517,985.85, 848,276,978.78 and 156,574,136.35 is: 234,861,204.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,517,985.85 : 848,276,978.78 = 156,574,136.35 : x
  2. Step 2: Convert to fraction form
    565,517,985.85/848,276,978.78 = 156,574,136.35/x
  3. Step 3: Cross multiply
    565,517,985.85x = 848,276,978.78 × 156,574,136.35
  4. Step 4: Simplify right side
    565,517,985.85x = 132,818,235,338,065,760
  5. Step 5: Solve for x
    x = 132,818,235,338,065,760/565,517,985.85
  6. Step 6: Final answer
    x = 234,861,204.53

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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.