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Finding the Fourth Proportional to 292,437.86, 438,672.38 and 92,774.21

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Solution

The fourth proportional to 292,437.86, 438,672.38 and 92,774.21 is: 139,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,437.86 : 438,672.38 = 92,774.21 : x
  2. Step 2: Convert to fraction form
    292,437.86/438,672.38 = 92,774.21/x
  3. Step 3: Cross multiply
    292,437.86x = 438,672.38 × 92,774.21
  4. Step 4: Simplify right side
    292,437.86x = 40,697,483,503.32
  5. Step 5: Solve for x
    x = 40,697,483,503.32/292,437.86
  6. Step 6: Final answer
    x = 139,166.26

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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.