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Finding the Fourth Proportional to 292,390.60, 438,537.83 and 102,806.41

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Solution

The fourth proportional to 292,390.60, 438,537.83 and 102,806.41 is: 154,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,390.60 : 438,537.83 = 102,806.41 : x
  2. Step 2: Convert to fraction form
    292,390.60/438,537.83 = 102,806.41/x
  3. Step 3: Cross multiply
    292,390.60x = 438,537.83 × 102,806.41
  4. Step 4: Simplify right side
    292,390.60x = 45,084,499,112.16
  5. Step 5: Solve for x
    x = 45,084,499,112.16/292,390.60
  6. Step 6: Final answer
    x = 154,192.71

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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.