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Finding the Fourth Proportional to 352,669.70, 529,004.55 and 186,781.70

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Solution

The fourth proportional to 352,669.70, 529,004.55 and 186,781.70 is: 280,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,669.70 : 529,004.55 = 186,781.70 : x
  2. Step 2: Convert to fraction form
    352,669.70/529,004.55 = 186,781.70/x
  3. Step 3: Cross multiply
    352,669.70x = 529,004.55 × 186,781.70
  4. Step 4: Simplify right side
    352,669.70x = 98,808,369,156.74
  5. Step 5: Solve for x
    x = 98,808,369,156.74/352,669.70
  6. Step 6: Final answer
    x = 280,172.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.