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Finding the Fourth Proportional to 74,598.40, 112,027.20 and 72,265.60

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Solution

The fourth proportional to 74,598.40, 112,027.20 and 72,265.60 is: 108,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,598.40 : 112,027.20 = 72,265.60 : x
  2. Step 2: Convert to fraction form
    74,598.40/112,027.20 = 72,265.60/x
  3. Step 3: Cross multiply
    74,598.40x = 112,027.20 × 72,265.60
  4. Step 4: Simplify right side
    74,598.40x = 8,095,712,824.32
  5. Step 5: Solve for x
    x = 8,095,712,824.32/74,598.40
  6. Step 6: Final answer
    x = 108,523.95

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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.