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Finding the Fourth Proportional to 90,342, 124,671.96 and 50,598

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Solution

The fourth proportional to 90,342, 124,671.96 and 50,598 is: 69,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,342 : 124,671.96 = 50,598 : x
  2. Step 2: Convert to fraction form
    90,342/124,671.96 = 50,598/x
  3. Step 3: Cross multiply
    90,342x = 124,671.96 × 50,598
  4. Step 4: Simplify right side
    90,342x = 6,308,151,832.08
  5. Step 5: Solve for x
    x = 6,308,151,832.08/90,342
  6. Step 6: Final answer
    x = 69,825.24

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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.