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Finding the Fourth Proportional to 357,118.89, 492,830.13 and 195,988.95

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Solution

The fourth proportional to 357,118.89, 492,830.13 and 195,988.95 is: 270,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,118.89 : 492,830.13 = 195,988.95 : x
  2. Step 2: Convert to fraction form
    357,118.89/492,830.13 = 195,988.95/x
  3. Step 3: Cross multiply
    357,118.89x = 492,830.13 × 195,988.95
  4. Step 4: Simplify right side
    357,118.89x = 96,589,259,707.06
  5. Step 5: Solve for x
    x = 96,589,259,707.06/357,118.89
  6. Step 6: Final answer
    x = 270,468.08

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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.