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Finding the Fourth Proportional to 108,717.50, 150,030.42 and 63,426.62

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Solution

The fourth proportional to 108,717.50, 150,030.42 and 63,426.62 is: 87,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,717.50 : 150,030.42 = 63,426.62 : x
  2. Step 2: Convert to fraction form
    108,717.50/150,030.42 = 63,426.62/x
  3. Step 3: Cross multiply
    108,717.50x = 150,030.42 × 63,426.62
  4. Step 4: Simplify right side
    108,717.50x = 9,515,922,437.78
  5. Step 5: Solve for x
    x = 9,515,922,437.78/108,717.50
  6. Step 6: Final answer
    x = 87,528.89

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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.