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Finding the Fourth Proportional to 134,065.64, 201,099 and 45,319.34

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Solution

The fourth proportional to 134,065.64, 201,099 and 45,319.34 is: 67,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,065.64 : 201,099 = 45,319.34 : x
  2. Step 2: Convert to fraction form
    134,065.64/201,099 = 45,319.34/x
  3. Step 3: Cross multiply
    134,065.64x = 201,099 × 45,319.34
  4. Step 4: Simplify right side
    134,065.64x = 9,113,673,954.66
  5. Step 5: Solve for x
    x = 9,113,673,954.66/134,065.64
  6. Step 6: Final answer
    x = 67,979.19

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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.