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Finding the Fourth Proportional to 235,210.80, 324,618.73 and 139,717.88

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Solution

The fourth proportional to 235,210.80, 324,618.73 and 139,717.88 is: 192,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,210.80 : 324,618.73 = 139,717.88 : x
  2. Step 2: Convert to fraction form
    235,210.80/324,618.73 = 139,717.88/x
  3. Step 3: Cross multiply
    235,210.80x = 324,618.73 × 139,717.88
  4. Step 4: Simplify right side
    235,210.80x = 45,355,040,763.89
  5. Step 5: Solve for x
    x = 45,355,040,763.89/235,210.80
  6. Step 6: Final answer
    x = 192,827.20

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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.