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Finding the Fourth Proportional to 158,612.26, 237,980.66 and 69,803.47

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Solution

The fourth proportional to 158,612.26, 237,980.66 and 69,803.47 is: 104,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,612.26 : 237,980.66 = 69,803.47 : x
  2. Step 2: Convert to fraction form
    158,612.26/237,980.66 = 69,803.47/x
  3. Step 3: Cross multiply
    158,612.26x = 237,980.66 × 69,803.47
  4. Step 4: Simplify right side
    158,612.26x = 16,611,875,860.89
  5. Step 5: Solve for x
    x = 16,611,875,860.89/158,612.26
  6. Step 6: Final answer
    x = 104,732.61

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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.