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Finding the Fourth Proportional to 141,842.40, 212,686.80 and 58,744.80

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Solution

The fourth proportional to 141,842.40, 212,686.80 and 58,744.80 is: 88,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,842.40 : 212,686.80 = 58,744.80 : x
  2. Step 2: Convert to fraction form
    141,842.40/212,686.80 = 58,744.80/x
  3. Step 3: Cross multiply
    141,842.40x = 212,686.80 × 58,744.80
  4. Step 4: Simplify right side
    141,842.40x = 12,494,243,528.64
  5. Step 5: Solve for x
    x = 12,494,243,528.64/141,842.40
  6. Step 6: Final answer
    x = 88,085.39

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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.