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Finding the Fourth Proportional to 74,707.96, 112,061.96 and 51,263.32

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Solution

The fourth proportional to 74,707.96, 112,061.96 and 51,263.32 is: 76,894.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,707.96 : 112,061.96 = 51,263.32 : x
  2. Step 2: Convert to fraction form
    74,707.96/112,061.96 = 51,263.32/x
  3. Step 3: Cross multiply
    74,707.96x = 112,061.96 × 51,263.32
  4. Step 4: Simplify right side
    74,707.96x = 5,744,668,115.31
  5. Step 5: Solve for x
    x = 5,744,668,115.31/74,707.96
  6. Step 6: Final answer
    x = 76,894.99

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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.