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Finding the Fourth Proportional to 108,372.48, 149,547 and 60,617.64

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Solution

The fourth proportional to 108,372.48, 149,547 and 60,617.64 is: 83,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,372.48 : 149,547 = 60,617.64 : x
  2. Step 2: Convert to fraction form
    108,372.48/149,547 = 60,617.64/x
  3. Step 3: Cross multiply
    108,372.48x = 149,547 × 60,617.64
  4. Step 4: Simplify right side
    108,372.48x = 9,065,186,209.08
  5. Step 5: Solve for x
    x = 9,065,186,209.08/108,372.48
  6. Step 6: Final answer
    x = 83,648.42

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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.