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Finding the Fourth Proportional to 124,596.81, 171,937.62 and 70,876.80

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Solution

The fourth proportional to 124,596.81, 171,937.62 and 70,876.80 is: 97,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,596.81 : 171,937.62 = 70,876.80 : x
  2. Step 2: Convert to fraction form
    124,596.81/171,937.62 = 70,876.80/x
  3. Step 3: Cross multiply
    124,596.81x = 171,937.62 × 70,876.80
  4. Step 4: Simplify right side
    124,596.81x = 12,186,388,305.22
  5. Step 5: Solve for x
    x = 12,186,388,305.22/124,596.81
  6. Step 6: Final answer
    x = 97,806.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.