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Finding the Fourth Proportional to 132,627.50, 183,027.50 and 72,199.20

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Solution

The fourth proportional to 132,627.50, 183,027.50 and 72,199.20 is: 99,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,627.50 : 183,027.50 = 72,199.20 : x
  2. Step 2: Convert to fraction form
    132,627.50/183,027.50 = 72,199.20/x
  3. Step 3: Cross multiply
    132,627.50x = 183,027.50 × 72,199.20
  4. Step 4: Simplify right side
    132,627.50x = 13,214,439,674.10
  5. Step 5: Solve for x
    x = 13,214,439,674.10/132,627.50
  6. Step 6: Final answer
    x = 99,635.75

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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.