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Finding the Fourth Proportional to 292,579.92, 438,705.72 and 92,863.08

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Solution

The fourth proportional to 292,579.92, 438,705.72 and 92,863.08 is: 139,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,579.92 : 438,705.72 = 92,863.08 : x
  2. Step 2: Convert to fraction form
    292,579.92/438,705.72 = 92,863.08/x
  3. Step 3: Cross multiply
    292,579.92x = 438,705.72 × 92,863.08
  4. Step 4: Simplify right side
    292,579.92x = 40,739,564,372.82
  5. Step 5: Solve for x
    x = 40,739,564,372.82/292,579.92
  6. Step 6: Final answer
    x = 139,242.52

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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.