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Finding the Fourth Proportional to 102,772.40, 154,129.80 and 32,673.20

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Solution

The fourth proportional to 102,772.40, 154,129.80 and 32,673.20 is: 49,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,772.40 : 154,129.80 = 32,673.20 : x
  2. Step 2: Convert to fraction form
    102,772.40/154,129.80 = 32,673.20/x
  3. Step 3: Cross multiply
    102,772.40x = 154,129.80 × 32,673.20
  4. Step 4: Simplify right side
    102,772.40x = 5,035,913,781.36
  5. Step 5: Solve for x
    x = 5,035,913,781.36/102,772.40
  6. Step 6: Final answer
    x = 49,000.64

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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.