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Finding the Fourth Proportional to 225,673.44, 311,429.60 and 125,071.52

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Solution

The fourth proportional to 225,673.44, 311,429.60 and 125,071.52 is: 172,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,673.44 : 311,429.60 = 125,071.52 : x
  2. Step 2: Convert to fraction form
    225,673.44/311,429.60 = 125,071.52/x
  3. Step 3: Cross multiply
    225,673.44x = 311,429.60 × 125,071.52
  4. Step 4: Simplify right side
    225,673.44x = 38,950,973,444.99
  5. Step 5: Solve for x
    x = 38,950,973,444.99/225,673.44
  6. Step 6: Final answer
    x = 172,598.84

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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.