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Finding the Fourth Proportional to 373,312.80, 559,969.20 and 136,825.20

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Solution

The fourth proportional to 373,312.80, 559,969.20 and 136,825.20 is: 205,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,312.80 : 559,969.20 = 136,825.20 : x
  2. Step 2: Convert to fraction form
    373,312.80/559,969.20 = 136,825.20/x
  3. Step 3: Cross multiply
    373,312.80x = 559,969.20 × 136,825.20
  4. Step 4: Simplify right side
    373,312.80x = 76,617,897,783.84
  5. Step 5: Solve for x
    x = 76,617,897,783.84/373,312.80
  6. Step 6: Final answer
    x = 205,237.80

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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.