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Finding the Fourth Proportional to 158,573.76, 218,841.92 and 104,764.51

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Solution

The fourth proportional to 158,573.76, 218,841.92 and 104,764.51 is: 144,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,573.76 : 218,841.92 = 104,764.51 : x
  2. Step 2: Convert to fraction form
    158,573.76/218,841.92 = 104,764.51/x
  3. Step 3: Cross multiply
    158,573.76x = 218,841.92 × 104,764.51
  4. Step 4: Simplify right side
    158,573.76x = 22,926,866,516.26
  5. Step 5: Solve for x
    x = 22,926,866,516.26/158,573.76
  6. Step 6: Final answer
    x = 144,581.72

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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.