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Finding the Fourth Proportional to 292,647.93, 438,926.07 and 92,942.01

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Solution

The fourth proportional to 292,647.93, 438,926.07 and 92,942.01 is: 139,398.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,647.93 : 438,926.07 = 92,942.01 : x
  2. Step 2: Convert to fraction form
    292,647.93/438,926.07 = 92,942.01/x
  3. Step 3: Cross multiply
    292,647.93x = 438,926.07 × 92,942.01
  4. Step 4: Simplify right side
    292,647.93x = 40,794,671,187.20
  5. Step 5: Solve for x
    x = 40,794,671,187.20/292,647.93
  6. Step 6: Final answer
    x = 139,398.46

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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.