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Finding the Fourth Proportional to 74,445.88, 102,751.52 and 45,790.17

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Solution

The fourth proportional to 74,445.88, 102,751.52 and 45,790.17 is: 63,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445.88 : 102,751.52 = 45,790.17 : x
  2. Step 2: Convert to fraction form
    74,445.88/102,751.52 = 45,790.17/x
  3. Step 3: Cross multiply
    74,445.88x = 102,751.52 × 45,790.17
  4. Step 4: Simplify right side
    74,445.88x = 4,705,009,568.56
  5. Step 5: Solve for x
    x = 4,705,009,568.56/74,445.88
  6. Step 6: Final answer
    x = 63,200.40

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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.