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Finding the Fourth Proportional to 119,119.99, 164,384.44 and 65,404.54

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Solution

The fourth proportional to 119,119.99, 164,384.44 and 65,404.54 is: 90,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,119.99 : 164,384.44 = 65,404.54 : x
  2. Step 2: Convert to fraction form
    119,119.99/164,384.44 = 65,404.54/x
  3. Step 3: Cross multiply
    119,119.99x = 164,384.44 × 65,404.54
  4. Step 4: Simplify right side
    119,119.99x = 10,751,488,681.36
  5. Step 5: Solve for x
    x = 10,751,488,681.36/119,119.99
  6. Step 6: Final answer
    x = 90,257.64

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1.5x scale

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.