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Finding the Fourth Proportional to 232,313.65, 320,705.49 and 155,804.76

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Solution

The fourth proportional to 232,313.65, 320,705.49 and 155,804.76 is: 215,086.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,313.65 : 320,705.49 = 155,804.76 : x
  2. Step 2: Convert to fraction form
    232,313.65/320,705.49 = 155,804.76/x
  3. Step 3: Cross multiply
    232,313.65x = 320,705.49 × 155,804.76
  4. Step 4: Simplify right side
    232,313.65x = 49,967,441,121.11
  5. Step 5: Solve for x
    x = 49,967,441,121.11/232,313.65
  6. Step 6: Final answer
    x = 215,086.12

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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.