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Finding the Fourth Proportional to 98,773.78, 136,306.78 and 53,450.77

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Solution

The fourth proportional to 98,773.78, 136,306.78 and 53,450.77 is: 73,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,773.78 : 136,306.78 = 53,450.77 : x
  2. Step 2: Convert to fraction form
    98,773.78/136,306.78 = 53,450.77/x
  3. Step 3: Cross multiply
    98,773.78x = 136,306.78 × 53,450.77
  4. Step 4: Simplify right side
    98,773.78x = 7,285,702,347.22
  5. Step 5: Solve for x
    x = 7,285,702,347.22/98,773.78
  6. Step 6: Final answer
    x = 73,761.50

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1.5x scale

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.