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Finding the Fourth Proportional to 354,605.60, 489,338.66 and 193,451.03

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Solution

The fourth proportional to 354,605.60, 489,338.66 and 193,451.03 is: 266,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,605.60 : 489,338.66 = 193,451.03 : x
  2. Step 2: Convert to fraction form
    354,605.60/489,338.66 = 193,451.03/x
  3. Step 3: Cross multiply
    354,605.60x = 489,338.66 × 193,451.03
  4. Step 4: Simplify right side
    354,605.60x = 94,663,069,502.79
  5. Step 5: Solve for x
    x = 94,663,069,502.79/354,605.60
  6. Step 6: Final answer
    x = 266,953.12

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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.