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Finding the Fourth Proportional to 188,818.55, 283,130.42 and 55,681.49

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Solution

The fourth proportional to 188,818.55, 283,130.42 and 55,681.49 is: 83,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,818.55 : 283,130.42 = 55,681.49 : x
  2. Step 2: Convert to fraction form
    188,818.55/283,130.42 = 55,681.49/x
  3. Step 3: Cross multiply
    188,818.55x = 283,130.42 × 55,681.49
  4. Step 4: Simplify right side
    188,818.55x = 15,765,121,955.87
  5. Step 5: Solve for x
    x = 15,765,121,955.87/188,818.55
  6. Step 6: Final answer
    x = 83,493.50

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1.5x scale

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.