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Finding the Fourth Proportional to 119,388.62, 164,600.14 and 86,653.63

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Solution

The fourth proportional to 119,388.62, 164,600.14 and 86,653.63 is: 119,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,388.62 : 164,600.14 = 86,653.63 : x
  2. Step 2: Convert to fraction form
    119,388.62/164,600.14 = 86,653.63/x
  3. Step 3: Cross multiply
    119,388.62x = 164,600.14 × 86,653.63
  4. Step 4: Simplify right side
    119,388.62x = 14,263,199,629.51
  5. Step 5: Solve for x
    x = 14,263,199,629.51/119,388.62
  6. Step 6: Final answer
    x = 119,468.67

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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.