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Finding the Fourth Proportional to 152,649.40, 228,909.30 and 73,787.80

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Solution

The fourth proportional to 152,649.40, 228,909.30 and 73,787.80 is: 110,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,649.40 : 228,909.30 = 73,787.80 : x
  2. Step 2: Convert to fraction form
    152,649.40/228,909.30 = 73,787.80/x
  3. Step 3: Cross multiply
    152,649.40x = 228,909.30 × 73,787.80
  4. Step 4: Simplify right side
    152,649.40x = 16,890,713,646.54
  5. Step 5: Solve for x
    x = 16,890,713,646.54/152,649.40
  6. Step 6: Final answer
    x = 110,650.38

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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.