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Finding the Fourth Proportional to 70,095.36, 105,142.50 and 17,504.49

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Solution

The fourth proportional to 70,095.36, 105,142.50 and 17,504.49 is: 26,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,095.36 : 105,142.50 = 17,504.49 : x
  2. Step 2: Convert to fraction form
    70,095.36/105,142.50 = 17,504.49/x
  3. Step 3: Cross multiply
    70,095.36x = 105,142.50 × 17,504.49
  4. Step 4: Simplify right side
    70,095.36x = 1,840,465,839.83
  5. Step 5: Solve for x
    x = 1,840,465,839.83/70,095.36
  6. Step 6: Final answer
    x = 26,256.60

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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.