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Finding the Fourth Proportional to 132,628.61, 183,027.48 and 72,199.70

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Solution

The fourth proportional to 132,628.61, 183,027.48 and 72,199.70 is: 99,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,628.61 : 183,027.48 = 72,199.70 : x
  2. Step 2: Convert to fraction form
    132,628.61/183,027.48 = 72,199.70/x
  3. Step 3: Cross multiply
    132,628.61x = 183,027.48 × 72,199.70
  4. Step 4: Simplify right side
    132,628.61x = 13,214,528,232.62
  5. Step 5: Solve for x
    x = 13,214,528,232.62/132,628.61
  6. Step 6: Final answer
    x = 99,635.58

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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.