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Finding the Fourth Proportional to 118,309, 163,052.58 and 98,059.24

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Solution

The fourth proportional to 118,309, 163,052.58 and 98,059.24 is: 135,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,309 : 163,052.58 = 98,059.24 : x
  2. Step 2: Convert to fraction form
    118,309/163,052.58 = 98,059.24/x
  3. Step 3: Cross multiply
    118,309x = 163,052.58 × 98,059.24
  4. Step 4: Simplify right side
    118,309x = 15,988,812,074.84
  5. Step 5: Solve for x
    x = 15,988,812,074.84/118,309
  6. Step 6: Final answer
    x = 135,144.51

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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.