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Finding the Fourth Proportional to 74,803.76, 112,225.08 and 35,360

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Solution

The fourth proportional to 74,803.76, 112,225.08 and 35,360 is: 53,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.76 : 112,225.08 = 35,360 : x
  2. Step 2: Convert to fraction form
    74,803.76/112,225.08 = 35,360/x
  3. Step 3: Cross multiply
    74,803.76x = 112,225.08 × 35,360
  4. Step 4: Simplify right side
    74,803.76x = 3,968,278,828.80
  5. Step 5: Solve for x
    x = 3,968,278,828.80/74,803.76
  6. Step 6: Final answer
    x = 53,049.19

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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.