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Finding the Fourth Proportional to 292,605.30, 438,907.95 and 92,945.87

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Solution

The fourth proportional to 292,605.30, 438,907.95 and 92,945.87 is: 139,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,605.30 : 438,907.95 = 92,945.87 : x
  2. Step 2: Convert to fraction form
    292,605.30/438,907.95 = 92,945.87/x
  3. Step 3: Cross multiply
    292,605.30x = 438,907.95 × 92,945.87
  4. Step 4: Simplify right side
    292,605.30x = 40,794,680,714.03
  5. Step 5: Solve for x
    x = 40,794,680,714.03/292,605.30
  6. Step 6: Final answer
    x = 139,418.80

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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.