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Finding the Fourth Proportional to 353,524.80, 487,874.40 and 192,390.06

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Solution

The fourth proportional to 353,524.80, 487,874.40 and 192,390.06 is: 265,503.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,524.80 : 487,874.40 = 192,390.06 : x
  2. Step 2: Convert to fraction form
    353,524.80/487,874.40 = 192,390.06/x
  3. Step 3: Cross multiply
    353,524.80x = 487,874.40 × 192,390.06
  4. Step 4: Simplify right side
    353,524.80x = 93,862,185,088.46
  5. Step 5: Solve for x
    x = 93,862,185,088.46/353,524.80
  6. Step 6: Final answer
    x = 265,503.82

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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.