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Finding the Fourth Proportional to 336,402.50, 504,603.76 and 136,831.46

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Solution

The fourth proportional to 336,402.50, 504,603.76 and 136,831.46 is: 205,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,402.50 : 504,603.76 = 136,831.46 : x
  2. Step 2: Convert to fraction form
    336,402.50/504,603.76 = 136,831.46/x
  3. Step 3: Cross multiply
    336,402.50x = 504,603.76 × 136,831.46
  4. Step 4: Simplify right side
    336,402.50x = 69,045,669,202.29
  5. Step 5: Solve for x
    x = 69,045,669,202.29/336,402.50
  6. Step 6: Final answer
    x = 205,247.19

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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.