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Finding the Fourth Proportional to 178,831.68, 268,080.84 and 60,420.30

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Solution

The fourth proportional to 178,831.68, 268,080.84 and 60,420.30 is: 90,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,831.68 : 268,080.84 = 60,420.30 : x
  2. Step 2: Convert to fraction form
    178,831.68/268,080.84 = 60,420.30/x
  3. Step 3: Cross multiply
    178,831.68x = 268,080.84 × 60,420.30
  4. Step 4: Simplify right side
    178,831.68x = 16,197,524,777.05
  5. Step 5: Solve for x
    x = 16,197,524,777.05/178,831.68
  6. Step 6: Final answer
    x = 90,574.14

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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.