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Finding the Fourth Proportional to 225,191.28, 310,790.61 and 127,077.06

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Solution

The fourth proportional to 225,191.28, 310,790.61 and 127,077.06 is: 175,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,191.28 : 310,790.61 = 127,077.06 : x
  2. Step 2: Convert to fraction form
    225,191.28/310,790.61 = 127,077.06/x
  3. Step 3: Cross multiply
    225,191.28x = 310,790.61 × 127,077.06
  4. Step 4: Simplify right side
    225,191.28x = 39,494,356,994.41
  5. Step 5: Solve for x
    x = 39,494,356,994.41/225,191.28
  6. Step 6: Final answer
    x = 175,381.38

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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.