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Finding the Fourth Proportional to 292,390.92, 438,602.04 and 92,726.46

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Solution

The fourth proportional to 292,390.92, 438,602.04 and 92,726.46 is: 139,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,390.92 : 438,602.04 = 92,726.46 : x
  2. Step 2: Convert to fraction form
    292,390.92/438,602.04 = 92,726.46/x
  3. Step 3: Cross multiply
    292,390.92x = 438,602.04 × 92,726.46
  4. Step 4: Simplify right side
    292,390.92x = 40,670,014,517.98
  5. Step 5: Solve for x
    x = 40,670,014,517.98/292,390.92
  6. Step 6: Final answer
    x = 139,094.66

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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.