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Finding the Fourth Proportional to 172,831.60, 259,247.40 and 125,592.40

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Solution

The fourth proportional to 172,831.60, 259,247.40 and 125,592.40 is: 188,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,831.60 : 259,247.40 = 125,592.40 : x
  2. Step 2: Convert to fraction form
    172,831.60/259,247.40 = 125,592.40/x
  3. Step 3: Cross multiply
    172,831.60x = 259,247.40 × 125,592.40
  4. Step 4: Simplify right side
    172,831.60x = 32,559,503,159.76
  5. Step 5: Solve for x
    x = 32,559,503,159.76/172,831.60
  6. Step 6: Final answer
    x = 188,388.60

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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.