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Finding the Fourth Proportional to 100,557.99, 150,900.53 and 56,213.87

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Solution

The fourth proportional to 100,557.99, 150,900.53 and 56,213.87 is: 84,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,557.99 : 150,900.53 = 56,213.87 : x
  2. Step 2: Convert to fraction form
    100,557.99/150,900.53 = 56,213.87/x
  3. Step 3: Cross multiply
    100,557.99x = 150,900.53 × 56,213.87
  4. Step 4: Simplify right side
    100,557.99x = 8,482,701,740.78
  5. Step 5: Solve for x
    x = 8,482,701,740.78/100,557.99
  6. Step 6: Final answer
    x = 84,356.32

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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.