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Finding the Fourth Proportional to 112,509.99, 168,765.21 and 45,950.13

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Solution

The fourth proportional to 112,509.99, 168,765.21 and 45,950.13 is: 68,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,509.99 : 168,765.21 = 45,950.13 : x
  2. Step 2: Convert to fraction form
    112,509.99/168,765.21 = 45,950.13/x
  3. Step 3: Cross multiply
    112,509.99x = 168,765.21 × 45,950.13
  4. Step 4: Simplify right side
    112,509.99x = 7,754,783,338.98
  5. Step 5: Solve for x
    x = 7,754,783,338.98/112,509.99
  6. Step 6: Final answer
    x = 68,925.29

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1.5x scale

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.