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Finding the Fourth Proportional to 334,561.30, 501,675.90 and 121,320.70

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Solution

The fourth proportional to 334,561.30, 501,675.90 and 121,320.70 is: 181,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,561.30 : 501,675.90 = 121,320.70 : x
  2. Step 2: Convert to fraction form
    334,561.30/501,675.90 = 121,320.70/x
  3. Step 3: Cross multiply
    334,561.30x = 501,675.90 × 121,320.70
  4. Step 4: Simplify right side
    334,561.30x = 60,863,671,361.13
  5. Step 5: Solve for x
    x = 60,863,671,361.13/334,561.30
  6. Step 6: Final answer
    x = 181,920.84

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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.