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Finding the Fourth Proportional to 161,887.40, 242,831.10 and 136,226.60

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Solution

The fourth proportional to 161,887.40, 242,831.10 and 136,226.60 is: 204,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.40 : 242,831.10 = 136,226.60 : x
  2. Step 2: Convert to fraction form
    161,887.40/242,831.10 = 136,226.60/x
  3. Step 3: Cross multiply
    161,887.40x = 242,831.10 × 136,226.60
  4. Step 4: Simplify right side
    161,887.40x = 33,080,055,127.26
  5. Step 5: Solve for x
    x = 33,080,055,127.26/161,887.40
  6. Step 6: Final answer
    x = 204,339.90

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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.