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Finding the Fourth Proportional to 357,218.59, 492,968.03 and 196,088.64

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Solution

The fourth proportional to 357,218.59, 492,968.03 and 196,088.64 is: 270,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,218.59 : 492,968.03 = 196,088.64 : x
  2. Step 2: Convert to fraction form
    357,218.59/492,968.03 = 196,088.64/x
  3. Step 3: Cross multiply
    357,218.59x = 492,968.03 × 196,088.64
  4. Step 4: Simplify right side
    357,218.59x = 96,665,430,566.18
  5. Step 5: Solve for x
    x = 96,665,430,566.18/357,218.59
  6. Step 6: Final answer
    x = 270,605.82

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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.