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Finding the Fourth Proportional to 225,555.06, 310,555.71 and 191,496.18

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Solution

The fourth proportional to 225,555.06, 310,555.71 and 191,496.18 is: 263,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,555.06 : 310,555.71 = 191,496.18 : x
  2. Step 2: Convert to fraction form
    225,555.06/310,555.71 = 191,496.18/x
  3. Step 3: Cross multiply
    225,555.06x = 310,555.71 × 191,496.18
  4. Step 4: Simplify right side
    225,555.06x = 59,470,232,142.19
  5. Step 5: Solve for x
    x = 59,470,232,142.19/225,555.06
  6. Step 6: Final answer
    x = 263,661.71

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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.