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Finding the Fourth Proportional to 368,915.02, 508,910.16 and 232,900

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Solution

The fourth proportional to 368,915.02, 508,910.16 and 232,900 is: 321,280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,915.02 : 508,910.16 = 232,900 : x
  2. Step 2: Convert to fraction form
    368,915.02/508,910.16 = 232,900/x
  3. Step 3: Cross multiply
    368,915.02x = 508,910.16 × 232,900
  4. Step 4: Simplify right side
    368,915.02x = 118,525,176,264
  5. Step 5: Solve for x
    x = 118,525,176,264/368,915.02
  6. Step 6: Final answer
    x = 321,280.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.