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Finding the Fourth Proportional to 358,262.71, 494,392.34 and 197,117.87

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Solution

The fourth proportional to 358,262.71, 494,392.34 and 197,117.87 is: 272,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,262.71 : 494,392.34 = 197,117.87 : x
  2. Step 2: Convert to fraction form
    358,262.71/494,392.34 = 197,117.87/x
  3. Step 3: Cross multiply
    358,262.71x = 494,392.34 × 197,117.87
  4. Step 4: Simplify right side
    358,262.71x = 97,453,563,025.95
  5. Step 5: Solve for x
    x = 97,453,563,025.95/358,262.71
  6. Step 6: Final answer
    x = 272,017.04

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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.