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Finding the Fourth Proportional to 292,553.40, 438,815.52 and 103,023.12

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Solution

The fourth proportional to 292,553.40, 438,815.52 and 103,023.12 is: 154,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,553.40 : 438,815.52 = 103,023.12 : x
  2. Step 2: Convert to fraction form
    292,553.40/438,815.52 = 103,023.12/x
  3. Step 3: Cross multiply
    292,553.40x = 438,815.52 × 103,023.12
  4. Step 4: Simplify right side
    292,553.40x = 45,208,143,974.82
  5. Step 5: Solve for x
    x = 45,208,143,974.82/292,553.40
  6. Step 6: Final answer
    x = 154,529.55

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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.