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Finding the Fourth Proportional to 178,012.68, 267,018.28 and 72,831.56

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Solution

The fourth proportional to 178,012.68, 267,018.28 and 72,831.56 is: 109,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,012.68 : 267,018.28 = 72,831.56 : x
  2. Step 2: Convert to fraction form
    178,012.68/267,018.28 = 72,831.56/x
  3. Step 3: Cross multiply
    178,012.68x = 267,018.28 × 72,831.56
  4. Step 4: Simplify right side
    178,012.68x = 19,447,357,880.92
  5. Step 5: Solve for x
    x = 19,447,357,880.92/178,012.68
  6. Step 6: Final answer
    x = 109,247.04

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1.5x scale

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.