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Finding the Fourth Proportional to 292,636.98, 438,910.56 and 92,931.48

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Solution

The fourth proportional to 292,636.98, 438,910.56 and 92,931.48 is: 139,382.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,636.98 : 438,910.56 = 92,931.48 : x
  2. Step 2: Convert to fraction form
    292,636.98/438,910.56 = 92,931.48/x
  3. Step 3: Cross multiply
    292,636.98x = 438,910.56 × 92,931.48
  4. Step 4: Simplify right side
    292,636.98x = 40,788,607,928.43
  5. Step 5: Solve for x
    x = 40,788,607,928.43/292,636.98
  6. Step 6: Final answer
    x = 139,382.96

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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.