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Finding the Fourth Proportional to 225,203.76, 310,785.72 and 124,603.44

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Solution

The fourth proportional to 225,203.76, 310,785.72 and 124,603.44 is: 171,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,203.76 : 310,785.72 = 124,603.44 : x
  2. Step 2: Convert to fraction form
    225,203.76/310,785.72 = 124,603.44/x
  3. Step 3: Cross multiply
    225,203.76x = 310,785.72 × 124,603.44
  4. Step 4: Simplify right side
    225,203.76x = 38,724,969,814.88
  5. Step 5: Solve for x
    x = 38,724,969,814.88/225,203.76
  6. Step 6: Final answer
    x = 171,955.25

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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.