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Finding the Fourth Proportional to 218,867.64, 302,037.52 and 118,265.64

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Solution

The fourth proportional to 218,867.64, 302,037.52 and 118,265.64 is: 163,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,867.64 : 302,037.52 = 118,265.64 : x
  2. Step 2: Convert to fraction form
    218,867.64/302,037.52 = 118,265.64/x
  3. Step 3: Cross multiply
    218,867.64x = 302,037.52 × 118,265.64
  4. Step 4: Simplify right side
    218,867.64x = 35,720,660,606.81
  5. Step 5: Solve for x
    x = 35,720,660,606.81/218,867.64
  6. Step 6: Final answer
    x = 163,206.68

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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.