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Finding the Fourth Proportional to 194,497.08, 268,479.76 and 130,871.78

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Solution

The fourth proportional to 194,497.08, 268,479.76 and 130,871.78 is: 180,652.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,497.08 : 268,479.76 = 130,871.78 : x
  2. Step 2: Convert to fraction form
    194,497.08/268,479.76 = 130,871.78/x
  3. Step 3: Cross multiply
    194,497.08x = 268,479.76 × 130,871.78
  4. Step 4: Simplify right side
    194,497.08x = 35,136,424,085.17
  5. Step 5: Solve for x
    x = 35,136,424,085.17/194,497.08
  6. Step 6: Final answer
    x = 180,652.71

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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.