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Finding the Fourth Proportional to 173,047.60, 259,571.40 and 143,887.60

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Solution

The fourth proportional to 173,047.60, 259,571.40 and 143,887.60 is: 215,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,047.60 : 259,571.40 = 143,887.60 : x
  2. Step 2: Convert to fraction form
    173,047.60/259,571.40 = 143,887.60/x
  3. Step 3: Cross multiply
    173,047.60x = 259,571.40 × 143,887.60
  4. Step 4: Simplify right side
    173,047.60x = 37,349,105,774.64
  5. Step 5: Solve for x
    x = 37,349,105,774.64/173,047.60
  6. Step 6: Final answer
    x = 215,831.40

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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.