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Finding the Fourth Proportional to 169,518.90, 254,360.94 and 69,709.08

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Solution

The fourth proportional to 169,518.90, 254,360.94 and 69,709.08 is: 104,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,518.90 : 254,360.94 = 69,709.08 : x
  2. Step 2: Convert to fraction form
    169,518.90/254,360.94 = 69,709.08/x
  3. Step 3: Cross multiply
    169,518.90x = 254,360.94 × 69,709.08
  4. Step 4: Simplify right side
    169,518.90x = 17,731,267,115.34
  5. Step 5: Solve for x
    x = 17,731,267,115.34/169,518.90
  6. Step 6: Final answer
    x = 104,597.58

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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.