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Finding the Fourth Proportional to 288,404.84, 432,482.45 and 119,809.69

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Solution

The fourth proportional to 288,404.84, 432,482.45 and 119,809.69 is: 179,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,404.84 : 432,482.45 = 119,809.69 : x
  2. Step 2: Convert to fraction form
    288,404.84/432,482.45 = 119,809.69/x
  3. Step 3: Cross multiply
    288,404.84x = 432,482.45 × 119,809.69
  4. Step 4: Simplify right side
    288,404.84x = 51,815,586,584.69
  5. Step 5: Solve for x
    x = 51,815,586,584.69/288,404.84
  6. Step 6: Final answer
    x = 179,662.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.