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Finding the Fourth Proportional to 384,372.66, 576,058.80 and 156,402.54

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Solution

The fourth proportional to 384,372.66, 576,058.80 and 156,402.54 is: 234,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,372.66 : 576,058.80 = 156,402.54 : x
  2. Step 2: Convert to fraction form
    384,372.66/576,058.80 = 156,402.54/x
  3. Step 3: Cross multiply
    384,372.66x = 576,058.80 × 156,402.54
  4. Step 4: Simplify right side
    384,372.66x = 90,097,059,509.35
  5. Step 5: Solve for x
    x = 90,097,059,509.35/384,372.66
  6. Step 6: Final answer
    x = 234,400.28

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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.