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Finding the Fourth Proportional to 352,557, 486,528.66 and 193,581

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Solution

The fourth proportional to 352,557, 486,528.66 and 193,581 is: 267,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,557 : 486,528.66 = 193,581 : x
  2. Step 2: Convert to fraction form
    352,557/486,528.66 = 193,581/x
  3. Step 3: Cross multiply
    352,557x = 486,528.66 × 193,581
  4. Step 4: Simplify right side
    352,557x = 94,182,704,531.46
  5. Step 5: Solve for x
    x = 94,182,704,531.46/352,557
  6. Step 6: Final answer
    x = 267,141.78

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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.