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Finding the Fourth Proportional to 373,513.20, 559,929.60 and 136,798.80

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Solution

The fourth proportional to 373,513.20, 559,929.60 and 136,798.80 is: 205,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,513.20 : 559,929.60 = 136,798.80 : x
  2. Step 2: Convert to fraction form
    373,513.20/559,929.60 = 136,798.80/x
  3. Step 3: Cross multiply
    373,513.20x = 559,929.60 × 136,798.80
  4. Step 4: Simplify right side
    373,513.20x = 76,597,697,364.48
  5. Step 5: Solve for x
    x = 76,597,697,364.48/373,513.20
  6. Step 6: Final answer
    x = 205,073.60

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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.