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Finding the Fourth Proportional to 306,388.80, 459,583.20 and 96,026.40

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Solution

The fourth proportional to 306,388.80, 459,583.20 and 96,026.40 is: 144,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,388.80 : 459,583.20 = 96,026.40 : x
  2. Step 2: Convert to fraction form
    306,388.80/459,583.20 = 96,026.40/x
  3. Step 3: Cross multiply
    306,388.80x = 459,583.20 × 96,026.40
  4. Step 4: Simplify right side
    306,388.80x = 44,132,120,196.48
  5. Step 5: Solve for x
    x = 44,132,120,196.48/306,388.80
  6. Step 6: Final answer
    x = 144,039.60

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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.