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Finding the Fourth Proportional to 357,062.85, 492,730.25 and 195,913.89

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Solution

The fourth proportional to 357,062.85, 492,730.25 and 195,913.89 is: 270,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,062.85 : 492,730.25 = 195,913.89 : x
  2. Step 2: Convert to fraction form
    357,062.85/492,730.25 = 195,913.89/x
  3. Step 3: Cross multiply
    357,062.85x = 492,730.25 × 195,913.89
  4. Step 4: Simplify right side
    357,062.85x = 96,532,699,018.60
  5. Step 5: Solve for x
    x = 96,532,699,018.60/357,062.85
  6. Step 6: Final answer
    x = 270,352.12

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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.