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Finding the Fourth Proportional to 141,798.75, 212,732.07 and 40,598.21

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Solution

The fourth proportional to 141,798.75, 212,732.07 and 40,598.21 is: 60,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,798.75 : 212,732.07 = 40,598.21 : x
  2. Step 2: Convert to fraction form
    141,798.75/212,732.07 = 40,598.21/x
  3. Step 3: Cross multiply
    141,798.75x = 212,732.07 × 40,598.21
  4. Step 4: Simplify right side
    141,798.75x = 8,636,539,984.94
  5. Step 5: Solve for x
    x = 8,636,539,984.94/141,798.75
  6. Step 6: Final answer
    x = 60,907.03

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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.