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Finding the Fourth Proportional to 229,831.40, 344,107.20 and 117,268.40

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Solution

The fourth proportional to 229,831.40, 344,107.20 and 117,268.40 is: 175,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,831.40 : 344,107.20 = 117,268.40 : x
  2. Step 2: Convert to fraction form
    229,831.40/344,107.20 = 117,268.40/x
  3. Step 3: Cross multiply
    229,831.40x = 344,107.20 × 117,268.40
  4. Step 4: Simplify right side
    229,831.40x = 40,352,900,772.48
  5. Step 5: Solve for x
    x = 40,352,900,772.48/229,831.40
  6. Step 6: Final answer
    x = 175,576.10

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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.