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Finding the Fourth Proportional to 384,407.64, 576,666.72 and 118,190.52

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Solution

The fourth proportional to 384,407.64, 576,666.72 and 118,190.52 is: 177,302.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,407.64 : 576,666.72 = 118,190.52 : x
  2. Step 2: Convert to fraction form
    384,407.64/576,666.72 = 118,190.52/x
  3. Step 3: Cross multiply
    384,407.64x = 576,666.72 × 118,190.52
  4. Step 4: Simplify right side
    384,407.64x = 68,156,539,503.49
  5. Step 5: Solve for x
    x = 68,156,539,503.49/384,407.64
  6. Step 6: Final answer
    x = 177,302.77

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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.