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Finding the Fourth Proportional to 223,221.04, 307,958.22 and 126,402.67

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Solution

The fourth proportional to 223,221.04, 307,958.22 and 126,402.67 is: 174,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,221.04 : 307,958.22 = 126,402.67 : x
  2. Step 2: Convert to fraction form
    223,221.04/307,958.22 = 126,402.67/x
  3. Step 3: Cross multiply
    223,221.04x = 307,958.22 × 126,402.67
  4. Step 4: Simplify right side
    223,221.04x = 38,926,741,256.45
  5. Step 5: Solve for x
    x = 38,926,741,256.45/223,221.04
  6. Step 6: Final answer
    x = 174,386.52

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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.