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Finding the Fourth Proportional to 202,915.71, 304,110.10 and 82,831.98

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Solution

The fourth proportional to 202,915.71, 304,110.10 and 82,831.98 is: 124,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,915.71 : 304,110.10 = 82,831.98 : x
  2. Step 2: Convert to fraction form
    202,915.71/304,110.10 = 82,831.98/x
  3. Step 3: Cross multiply
    202,915.71x = 304,110.10 × 82,831.98
  4. Step 4: Simplify right side
    202,915.71x = 25,190,041,216.06
  5. Step 5: Solve for x
    x = 25,190,041,216.06/202,915.71
  6. Step 6: Final answer
    x = 124,140.42

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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.