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Finding the Fourth Proportional to 98,126.40, 135,114.56 and 73,962.48

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Solution

The fourth proportional to 98,126.40, 135,114.56 and 73,962.48 is: 101,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,126.40 : 135,114.56 = 73,962.48 : x
  2. Step 2: Convert to fraction form
    98,126.40/135,114.56 = 73,962.48/x
  3. Step 3: Cross multiply
    98,126.40x = 135,114.56 × 73,962.48
  4. Step 4: Simplify right side
    98,126.40x = 9,993,407,941.71
  5. Step 5: Solve for x
    x = 9,993,407,941.71/98,126.40
  6. Step 6: Final answer
    x = 101,842.19

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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.