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Finding the Fourth Proportional to 108,673.60, 149,975.76 and 60,924.64

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Solution

The fourth proportional to 108,673.60, 149,975.76 and 60,924.64 is: 84,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,673.60 : 149,975.76 = 60,924.64 : x
  2. Step 2: Convert to fraction form
    108,673.60/149,975.76 = 60,924.64/x
  3. Step 3: Cross multiply
    108,673.60x = 149,975.76 × 60,924.64
  4. Step 4: Simplify right side
    108,673.60x = 9,137,219,186.73
  5. Step 5: Solve for x
    x = 9,137,219,186.73/108,673.60
  6. Step 6: Final answer
    x = 84,079.47

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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.