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Finding the Fourth Proportional to 98,880.66, 136,455.44 and 53,558.73

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Solution

The fourth proportional to 98,880.66, 136,455.44 and 53,558.73 is: 73,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,880.66 : 136,455.44 = 53,558.73 : x
  2. Step 2: Convert to fraction form
    98,880.66/136,455.44 = 53,558.73/x
  3. Step 3: Cross multiply
    98,880.66x = 136,455.44 × 53,558.73
  4. Step 4: Simplify right side
    98,880.66x = 7,308,379,800.20
  5. Step 5: Solve for x
    x = 7,308,379,800.20/98,880.66
  6. Step 6: Final answer
    x = 73,911.11

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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.