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Finding the Fourth Proportional to 98,881.83, 136,455.84 and 53,558.69

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Solution

The fourth proportional to 98,881.83, 136,455.84 and 53,558.69 is: 73,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,881.83 : 136,455.84 = 53,558.69 : x
  2. Step 2: Convert to fraction form
    98,881.83/136,455.84 = 53,558.69/x
  3. Step 3: Cross multiply
    98,881.83x = 136,455.84 × 53,558.69
  4. Step 4: Simplify right side
    98,881.83x = 7,308,395,350.97
  5. Step 5: Solve for x
    x = 7,308,395,350.97/98,881.83
  6. Step 6: Final answer
    x = 73,910.40

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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.