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Finding the Fourth Proportional to 333,702.81, 500,550.03 and 80,985.42

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Solution

The fourth proportional to 333,702.81, 500,550.03 and 80,985.42 is: 121,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,702.81 : 500,550.03 = 80,985.42 : x
  2. Step 2: Convert to fraction form
    333,702.81/500,550.03 = 80,985.42/x
  3. Step 3: Cross multiply
    333,702.81x = 500,550.03 × 80,985.42
  4. Step 4: Simplify right side
    333,702.81x = 40,537,254,410.56
  5. Step 5: Solve for x
    x = 40,537,254,410.56/333,702.81
  6. Step 6: Final answer
    x = 121,477.11

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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.