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Finding the Fourth Proportional to 119,444.84, 164,830.40 and 65,729.84

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Solution

The fourth proportional to 119,444.84, 164,830.40 and 65,729.84 is: 90,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,444.84 : 164,830.40 = 65,729.84 : x
  2. Step 2: Convert to fraction form
    119,444.84/164,830.40 = 65,729.84/x
  3. Step 3: Cross multiply
    119,444.84x = 164,830.40 × 65,729.84
  4. Step 4: Simplify right side
    119,444.84x = 10,834,275,819.14
  5. Step 5: Solve for x
    x = 10,834,275,819.14/119,444.84
  6. Step 6: Final answer
    x = 90,705.26

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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.