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Finding the Fourth Proportional to 357,119.03, 492,838.48 and 195,979.85

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Solution

The fourth proportional to 357,119.03, 492,838.48 and 195,979.85 is: 270,459.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,119.03 : 492,838.48 = 195,979.85 : x
  2. Step 2: Convert to fraction form
    357,119.03/492,838.48 = 195,979.85/x
  3. Step 3: Cross multiply
    357,119.03x = 492,838.48 × 195,979.85
  4. Step 4: Simplify right side
    357,119.03x = 96,586,411,013.55
  5. Step 5: Solve for x
    x = 96,586,411,013.55/357,119.03
  6. Step 6: Final answer
    x = 270,459.99

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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.