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Finding the Fourth Proportional to 85,805.79, 118,341.81 and 60,396.27

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Solution

The fourth proportional to 85,805.79, 118,341.81 and 60,396.27 is: 83,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,805.79 : 118,341.81 = 60,396.27 : x
  2. Step 2: Convert to fraction form
    85,805.79/118,341.81 = 60,396.27/x
  3. Step 3: Cross multiply
    85,805.79x = 118,341.81 × 60,396.27
  4. Step 4: Simplify right side
    85,805.79x = 7,147,403,909.05
  5. Step 5: Solve for x
    x = 7,147,403,909.05/85,805.79
  6. Step 6: Final answer
    x = 83,297.45

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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.