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Finding the Fourth Proportional to 335,661.98, 503,319.83 and 98,973.90

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Solution

The fourth proportional to 335,661.98, 503,319.83 and 98,973.90 is: 148,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,661.98 : 503,319.83 = 98,973.90 : x
  2. Step 2: Convert to fraction form
    335,661.98/503,319.83 = 98,973.90/x
  3. Step 3: Cross multiply
    335,661.98x = 503,319.83 × 98,973.90
  4. Step 4: Simplify right side
    335,661.98x = 49,815,526,027.57
  5. Step 5: Solve for x
    x = 49,815,526,027.57/335,661.98
  6. Step 6: Final answer
    x = 148,409.80

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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.