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Finding the Fourth Proportional to 94,814.40, 142,124.40 and 55,351.20

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Solution

The fourth proportional to 94,814.40, 142,124.40 and 55,351.20 is: 82,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,814.40 : 142,124.40 = 55,351.20 : x
  2. Step 2: Convert to fraction form
    94,814.40/142,124.40 = 55,351.20/x
  3. Step 3: Cross multiply
    94,814.40x = 142,124.40 × 55,351.20
  4. Step 4: Simplify right side
    94,814.40x = 7,866,756,089.28
  5. Step 5: Solve for x
    x = 7,866,756,089.28/94,814.40
  6. Step 6: Final answer
    x = 82,970.06

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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.