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Finding the Fourth Proportional to 380,372.61, 570,614.55 and 114,154.17

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Solution

The fourth proportional to 380,372.61, 570,614.55 and 114,154.17 is: 171,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,372.61 : 570,614.55 = 114,154.17 : x
  2. Step 2: Convert to fraction form
    380,372.61/570,614.55 = 114,154.17/x
  3. Step 3: Cross multiply
    380,372.61x = 570,614.55 × 114,154.17
  4. Step 4: Simplify right side
    380,372.61x = 65,138,030,345.17
  5. Step 5: Solve for x
    x = 65,138,030,345.17/380,372.61
  6. Step 6: Final answer
    x = 171,247.95

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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.