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Finding the Fourth Proportional to 353,518, 487,854.92 and 194,542

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Solution

The fourth proportional to 353,518, 487,854.92 and 194,542 is: 268,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,518 : 487,854.92 = 194,542 : x
  2. Step 2: Convert to fraction form
    353,518/487,854.92 = 194,542/x
  3. Step 3: Cross multiply
    353,518x = 487,854.92 × 194,542
  4. Step 4: Simplify right side
    353,518x = 94,908,271,846.64
  5. Step 5: Solve for x
    x = 94,908,271,846.64/353,518
  6. Step 6: Final answer
    x = 268,468.00

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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.