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Finding the Fourth Proportional to 133,233.48, 183,864.32 and 79,549.92

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Solution

The fourth proportional to 133,233.48, 183,864.32 and 79,549.92 is: 109,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,233.48 : 183,864.32 = 79,549.92 : x
  2. Step 2: Convert to fraction form
    133,233.48/183,864.32 = 79,549.92/x
  3. Step 3: Cross multiply
    133,233.48x = 183,864.32 × 79,549.92
  4. Step 4: Simplify right side
    133,233.48x = 14,626,391,946.85
  5. Step 5: Solve for x
    x = 14,626,391,946.85/133,233.48
  6. Step 6: Final answer
    x = 109,780.15

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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.