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Finding the Fourth Proportional to 98,455, 135,867.96 and 60,751.12

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Solution

The fourth proportional to 98,455, 135,867.96 and 60,751.12 is: 83,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,455 : 135,867.96 = 60,751.12 : x
  2. Step 2: Convert to fraction form
    98,455/135,867.96 = 60,751.12/x
  3. Step 3: Cross multiply
    98,455x = 135,867.96 × 60,751.12
  4. Step 4: Simplify right side
    98,455x = 8,254,130,742.12
  5. Step 5: Solve for x
    x = 8,254,130,742.12/98,455
  6. Step 6: Final answer
    x = 83,836.58

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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.