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Finding the Fourth Proportional to 152,628.40, 228,877.80 and 73,766.80

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Solution

The fourth proportional to 152,628.40, 228,877.80 and 73,766.80 is: 110,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,628.40 : 228,877.80 = 73,766.80 : x
  2. Step 2: Convert to fraction form
    152,628.40/228,877.80 = 73,766.80/x
  3. Step 3: Cross multiply
    152,628.40x = 228,877.80 × 73,766.80
  4. Step 4: Simplify right side
    152,628.40x = 16,883,582,897.04
  5. Step 5: Solve for x
    x = 16,883,582,897.04/152,628.40
  6. Step 6: Final answer
    x = 110,618.88

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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.