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Finding the Fourth Proportional to 74,803.60, 112,205.40 and 37,862.80

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Solution

The fourth proportional to 74,803.60, 112,205.40 and 37,862.80 is: 56,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.60 : 112,205.40 = 37,862.80 : x
  2. Step 2: Convert to fraction form
    74,803.60/112,205.40 = 37,862.80/x
  3. Step 3: Cross multiply
    74,803.60x = 112,205.40 × 37,862.80
  4. Step 4: Simplify right side
    74,803.60x = 4,248,410,619.12
  5. Step 5: Solve for x
    x = 4,248,410,619.12/74,803.60
  6. Step 6: Final answer
    x = 56,794.20

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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.