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Finding the Fourth Proportional to 74,806.76, 103,270.74 and 46,521.56

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Solution

The fourth proportional to 74,806.76, 103,270.74 and 46,521.56 is: 64,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,806.76 : 103,270.74 = 46,521.56 : x
  2. Step 2: Convert to fraction form
    74,806.76/103,270.74 = 46,521.56/x
  3. Step 3: Cross multiply
    74,806.76x = 103,270.74 × 46,521.56
  4. Step 4: Simplify right side
    74,806.76x = 4,804,315,927.15
  5. Step 5: Solve for x
    x = 4,804,315,927.15/74,806.76
  6. Step 6: Final answer
    x = 64,223.02

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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.