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Finding the Fourth Proportional to 169,254.84, 253,840.50 and 69,443.40

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Solution

The fourth proportional to 169,254.84, 253,840.50 and 69,443.40 is: 104,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,254.84 : 253,840.50 = 69,443.40 : x
  2. Step 2: Convert to fraction form
    169,254.84/253,840.50 = 69,443.40/x
  3. Step 3: Cross multiply
    169,254.84x = 253,840.50 × 69,443.40
  4. Step 4: Simplify right side
    169,254.84x = 17,627,547,377.70
  5. Step 5: Solve for x
    x = 17,627,547,377.70/169,254.84
  6. Step 6: Final answer
    x = 104,147.97

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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.