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Finding the Fourth Proportional to 107,807.66, 161,532.71 and 65,559.95

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Solution

The fourth proportional to 107,807.66, 161,532.71 and 65,559.95 is: 98,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,807.66 : 161,532.71 = 65,559.95 : x
  2. Step 2: Convert to fraction form
    107,807.66/161,532.71 = 65,559.95/x
  3. Step 3: Cross multiply
    107,807.66x = 161,532.71 × 65,559.95
  4. Step 4: Simplify right side
    107,807.66x = 10,590,076,390.96
  5. Step 5: Solve for x
    x = 10,590,076,390.96/107,807.66
  6. Step 6: Final answer
    x = 98,231.21

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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.