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Finding the Fourth Proportional to 392,547.20, 588,897.60 and 167,907.20

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Solution

The fourth proportional to 392,547.20, 588,897.60 and 167,907.20 is: 251,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,547.20 : 588,897.60 = 167,907.20 : x
  2. Step 2: Convert to fraction form
    392,547.20/588,897.60 = 167,907.20/x
  3. Step 3: Cross multiply
    392,547.20x = 588,897.60 × 167,907.20
  4. Step 4: Simplify right side
    392,547.20x = 98,880,147,102.72
  5. Step 5: Solve for x
    x = 98,880,147,102.72/392,547.20
  6. Step 6: Final answer
    x = 251,893.65

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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.