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Finding the Fourth Proportional to 104,651.99, 144,418.98 and 56,905.33

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Solution

The fourth proportional to 104,651.99, 144,418.98 and 56,905.33 is: 78,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,651.99 : 144,418.98 = 56,905.33 : x
  2. Step 2: Convert to fraction form
    104,651.99/144,418.98 = 56,905.33/x
  3. Step 3: Cross multiply
    104,651.99x = 144,418.98 × 56,905.33
  4. Step 4: Simplify right side
    104,651.99x = 8,218,209,715.16
  5. Step 5: Solve for x
    x = 8,218,209,715.16/104,651.99
  6. Step 6: Final answer
    x = 78,528.94

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1.5x scale

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.