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Finding the Fourth Proportional to 292,291.61, 438,491.48 and 92,662.25

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Solution

The fourth proportional to 292,291.61, 438,491.48 and 92,662.25 is: 139,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,291.61 : 438,491.48 = 92,662.25 : x
  2. Step 2: Convert to fraction form
    292,291.61/438,491.48 = 92,662.25/x
  3. Step 3: Cross multiply
    292,291.61x = 438,491.48 × 92,662.25
  4. Step 4: Simplify right side
    292,291.61x = 40,631,604,486.86
  5. Step 5: Solve for x
    x = 40,631,604,486.86/292,291.61
  6. Step 6: Final answer
    x = 139,010.51

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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.