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Finding the Fourth Proportional to 235,425.96, 324,798.66 and 144,709.20

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Solution

The fourth proportional to 235,425.96, 324,798.66 and 144,709.20 is: 199,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,425.96 : 324,798.66 = 144,709.20 : x
  2. Step 2: Convert to fraction form
    235,425.96/324,798.66 = 144,709.20/x
  3. Step 3: Cross multiply
    235,425.96x = 324,798.66 × 144,709.20
  4. Step 4: Simplify right side
    235,425.96x = 47,001,354,249.67
  5. Step 5: Solve for x
    x = 47,001,354,249.67/235,425.96
  6. Step 6: Final answer
    x = 199,643.89

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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.