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Finding the Fourth Proportional to 121,813.68, 182,695.41 and 46,908.12

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Solution

The fourth proportional to 121,813.68, 182,695.41 and 46,908.12 is: 70,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,813.68 : 182,695.41 = 46,908.12 : x
  2. Step 2: Convert to fraction form
    121,813.68/182,695.41 = 46,908.12/x
  3. Step 3: Cross multiply
    121,813.68x = 182,695.41 × 46,908.12
  4. Step 4: Simplify right side
    121,813.68x = 8,569,898,215.73
  5. Step 5: Solve for x
    x = 8,569,898,215.73/121,813.68
  6. Step 6: Final answer
    x = 70,352.51

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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.