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Finding the Fourth Proportional to 292,458.40, 438,650.88 and 92,799.52

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Solution

The fourth proportional to 292,458.40, 438,650.88 and 92,799.52 is: 139,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,458.40 : 438,650.88 = 92,799.52 : x
  2. Step 2: Convert to fraction form
    292,458.40/438,650.88 = 92,799.52/x
  3. Step 3: Cross multiply
    292,458.40x = 438,650.88 × 92,799.52
  4. Step 4: Simplify right side
    292,458.40x = 40,706,591,111.58
  5. Step 5: Solve for x
    x = 40,706,591,111.58/292,458.40
  6. Step 6: Final answer
    x = 139,187.63

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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.