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Finding the Fourth Proportional to 97,513.82, 134,559.05 and 66,913.16

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Solution

The fourth proportional to 97,513.82, 134,559.05 and 66,913.16 is: 92,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,513.82 : 134,559.05 = 66,913.16 : x
  2. Step 2: Convert to fraction form
    97,513.82/134,559.05 = 66,913.16/x
  3. Step 3: Cross multiply
    97,513.82x = 134,559.05 × 66,913.16
  4. Step 4: Simplify right side
    97,513.82x = 9,003,771,243.93
  5. Step 5: Solve for x
    x = 9,003,771,243.93/97,513.82
  6. Step 6: Final answer
    x = 92,333.28

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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.