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Finding the Fourth Proportional to 98,840.76, 136,394.84 and 57,999.39

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Solution

The fourth proportional to 98,840.76, 136,394.84 and 57,999.39 is: 80,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,840.76 : 136,394.84 = 57,999.39 : x
  2. Step 2: Convert to fraction form
    98,840.76/136,394.84 = 57,999.39/x
  3. Step 3: Cross multiply
    98,840.76x = 136,394.84 × 57,999.39
  4. Step 4: Simplify right side
    98,840.76x = 7,910,816,837.17
  5. Step 5: Solve for x
    x = 7,910,816,837.17/98,840.76
  6. Step 6: Final answer
    x = 80,035.98

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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.