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Finding the Fourth Proportional to 98,688.25, 136,193.04 and 53,976.25

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Solution

The fourth proportional to 98,688.25, 136,193.04 and 53,976.25 is: 74,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.25 : 136,193.04 = 53,976.25 : x
  2. Step 2: Convert to fraction form
    98,688.25/136,193.04 = 53,976.25/x
  3. Step 3: Cross multiply
    98,688.25x = 136,193.04 × 53,976.25
  4. Step 4: Simplify right side
    98,688.25x = 7,351,189,575.30
  5. Step 5: Solve for x
    x = 7,351,189,575.30/98,688.25
  6. Step 6: Final answer
    x = 74,489.01

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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.