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Finding the Fourth Proportional to 93,272.90, 128,712.84 and 50,830.52

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Solution

The fourth proportional to 93,272.90, 128,712.84 and 50,830.52 is: 70,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,272.90 : 128,712.84 = 50,830.52 : x
  2. Step 2: Convert to fraction form
    93,272.90/128,712.84 = 50,830.52/x
  3. Step 3: Cross multiply
    93,272.90x = 128,712.84 × 50,830.52
  4. Step 4: Simplify right side
    93,272.90x = 6,542,539,944.31
  5. Step 5: Solve for x
    x = 6,542,539,944.31/93,272.90
  6. Step 6: Final answer
    x = 70,144.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.