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Finding the Fourth Proportional to 132,970.71, 199,426.86 and 38,179.76

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Solution

The fourth proportional to 132,970.71, 199,426.86 and 38,179.76 is: 57,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,970.71 : 199,426.86 = 38,179.76 : x
  2. Step 2: Convert to fraction form
    132,970.71/199,426.86 = 38,179.76/x
  3. Step 3: Cross multiply
    132,970.71x = 199,426.86 × 38,179.76
  4. Step 4: Simplify right side
    132,970.71x = 7,614,068,655.22
  5. Step 5: Solve for x
    x = 7,614,068,655.22/132,970.71
  6. Step 6: Final answer
    x = 57,261.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.