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Finding the Fourth Proportional to 53,127.20, 79,690.80 and 44,670.80

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Solution

The fourth proportional to 53,127.20, 79,690.80 and 44,670.80 is: 67,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,127.20 : 79,690.80 = 44,670.80 : x
  2. Step 2: Convert to fraction form
    53,127.20/79,690.80 = 44,670.80/x
  3. Step 3: Cross multiply
    53,127.20x = 79,690.80 × 44,670.80
  4. Step 4: Simplify right side
    53,127.20x = 3,559,851,788.64
  5. Step 5: Solve for x
    x = 3,559,851,788.64/53,127.20
  6. Step 6: Final answer
    x = 67,006.20

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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.