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Finding the Fourth Proportional to 333,798.66, 500,776.79 and 109,158.21

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Solution

The fourth proportional to 333,798.66, 500,776.79 and 109,158.21 is: 163,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,798.66 : 500,776.79 = 109,158.21 : x
  2. Step 2: Convert to fraction form
    333,798.66/500,776.79 = 109,158.21/x
  3. Step 3: Cross multiply
    333,798.66x = 500,776.79 × 109,158.21
  4. Step 4: Simplify right side
    333,798.66x = 54,663,897,460.15
  5. Step 5: Solve for x
    x = 54,663,897,460.15/333,798.66
  6. Step 6: Final answer
    x = 163,763.08

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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.