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Finding the Fourth Proportional to 91,415.51, 137,106.45 and 41,483.60

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Solution

The fourth proportional to 91,415.51, 137,106.45 and 41,483.60 is: 62,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,415.51 : 137,106.45 = 41,483.60 : x
  2. Step 2: Convert to fraction form
    91,415.51/137,106.45 = 41,483.60/x
  3. Step 3: Cross multiply
    91,415.51x = 137,106.45 × 41,483.60
  4. Step 4: Simplify right side
    91,415.51x = 5,687,669,129.22
  5. Step 5: Solve for x
    x = 5,687,669,129.22/91,415.51
  6. Step 6: Final answer
    x = 62,217.77

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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.