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Finding the Fourth Proportional to 376,159.57, 519,100.15 and 215,018.08

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Solution

The fourth proportional to 376,159.57, 519,100.15 and 215,018.08 is: 296,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,159.57 : 519,100.15 = 215,018.08 : x
  2. Step 2: Convert to fraction form
    376,159.57/519,100.15 = 215,018.08/x
  3. Step 3: Cross multiply
    376,159.57x = 519,100.15 × 215,018.08
  4. Step 4: Simplify right side
    376,159.57x = 111,615,917,580.71
  5. Step 5: Solve for x
    x = 111,615,917,580.71/376,159.57
  6. Step 6: Final answer
    x = 296,724.92

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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.