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Finding the Fourth Proportional to 333,585.84, 500,379.76 and 80,865.34

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Solution

The fourth proportional to 333,585.84, 500,379.76 and 80,865.34 is: 121,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,585.84 : 500,379.76 = 80,865.34 : x
  2. Step 2: Convert to fraction form
    333,585.84/500,379.76 = 80,865.34/x
  3. Step 3: Cross multiply
    333,585.84x = 500,379.76 × 80,865.34
  4. Step 4: Simplify right side
    333,585.84x = 40,463,379,421.52
  5. Step 5: Solve for x
    x = 40,463,379,421.52/333,585.84
  6. Step 6: Final answer
    x = 121,298.25

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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.