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Finding the Fourth Proportional to 141,860.43, 212,821.74 and 42,028.47

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Solution

The fourth proportional to 141,860.43, 212,821.74 and 42,028.47 is: 63,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,860.43 : 212,821.74 = 42,028.47 : x
  2. Step 2: Convert to fraction form
    141,860.43/212,821.74 = 42,028.47/x
  3. Step 3: Cross multiply
    141,860.43x = 212,821.74 × 42,028.47
  4. Step 4: Simplify right side
    141,860.43x = 8,944,572,114.94
  5. Step 5: Solve for x
    x = 8,944,572,114.94/141,860.43
  6. Step 6: Final answer
    x = 63,051.92

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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.