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Finding the Fourth Proportional to 132,994.60, 183,532.74 and 72,565.52

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Solution

The fourth proportional to 132,994.60, 183,532.74 and 72,565.52 is: 100,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,994.60 : 183,532.74 = 72,565.52 : x
  2. Step 2: Convert to fraction form
    132,994.60/183,532.74 = 72,565.52/x
  3. Step 3: Cross multiply
    132,994.60x = 183,532.74 × 72,565.52
  4. Step 4: Simplify right side
    132,994.60x = 13,318,148,715.12
  5. Step 5: Solve for x
    x = 13,318,148,715.12/132,994.60
  6. Step 6: Final answer
    x = 100,140.52

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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.