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Finding the Fourth Proportional to 292,508.96, 438,763.43 and 70,892.96

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Solution

The fourth proportional to 292,508.96, 438,763.43 and 70,892.96 is: 106,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,508.96 : 438,763.43 = 70,892.96 : x
  2. Step 2: Convert to fraction form
    292,508.96/438,763.43 = 70,892.96/x
  3. Step 3: Cross multiply
    292,508.96x = 438,763.43 × 70,892.96
  4. Step 4: Simplify right side
    292,508.96x = 31,105,238,292.45
  5. Step 5: Solve for x
    x = 31,105,238,292.45/292,508.96
  6. Step 6: Final answer
    x = 106,339.44

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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.