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Finding the Fourth Proportional to 169,635.98, 255,645.34 and 152,790.10

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Solution

The fourth proportional to 169,635.98, 255,645.34 and 152,790.10 is: 230,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,635.98 : 255,645.34 = 152,790.10 : x
  2. Step 2: Convert to fraction form
    169,635.98/255,645.34 = 152,790.10/x
  3. Step 3: Cross multiply
    169,635.98x = 255,645.34 × 152,790.10
  4. Step 4: Simplify right side
    169,635.98x = 39,060,077,063.13
  5. Step 5: Solve for x
    x = 39,060,077,063.13/169,635.98
  6. Step 6: Final answer
    x = 230,258.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.