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Finding the Fourth Proportional to 148,598.90, 205,062.48 and 90,433.82

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Solution

The fourth proportional to 148,598.90, 205,062.48 and 90,433.82 is: 124,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,598.90 : 205,062.48 = 90,433.82 : x
  2. Step 2: Convert to fraction form
    148,598.90/205,062.48 = 90,433.82/x
  3. Step 3: Cross multiply
    148,598.90x = 205,062.48 × 90,433.82
  4. Step 4: Simplify right side
    148,598.90x = 18,544,583,405.07
  5. Step 5: Solve for x
    x = 18,544,583,405.07/148,598.90
  6. Step 6: Final answer
    x = 124,796.24

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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.