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Finding the Fourth Proportional to 371,226.80, 556,840.20 and 134,577.20

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Solution

The fourth proportional to 371,226.80, 556,840.20 and 134,577.20 is: 201,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,226.80 : 556,840.20 = 134,577.20 : x
  2. Step 2: Convert to fraction form
    371,226.80/556,840.20 = 134,577.20/x
  3. Step 3: Cross multiply
    371,226.80x = 556,840.20 × 134,577.20
  4. Step 4: Simplify right side
    371,226.80x = 74,937,994,963.44
  5. Step 5: Solve for x
    x = 74,937,994,963.44/371,226.80
  6. Step 6: Final answer
    x = 201,865.80

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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.