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Finding the Fourth Proportional to 92,664.40, 139,061.40 and 40,111.60

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Solution

The fourth proportional to 92,664.40, 139,061.40 and 40,111.60 is: 60,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,664.40 : 139,061.40 = 40,111.60 : x
  2. Step 2: Convert to fraction form
    92,664.40/139,061.40 = 40,111.60/x
  3. Step 3: Cross multiply
    92,664.40x = 139,061.40 × 40,111.60
  4. Step 4: Simplify right side
    92,664.40x = 5,577,975,252.24
  5. Step 5: Solve for x
    x = 5,577,975,252.24/92,664.40
  6. Step 6: Final answer
    x = 60,195.45

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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.