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Finding the Fourth Proportional to 189,034.90, 283,607.69 and 55,918.69

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Solution

The fourth proportional to 189,034.90, 283,607.69 and 55,918.69 is: 83,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,034.90 : 283,607.69 = 55,918.69 : x
  2. Step 2: Convert to fraction form
    189,034.90/283,607.69 = 55,918.69/x
  3. Step 3: Cross multiply
    189,034.90x = 283,607.69 × 55,918.69
  4. Step 4: Simplify right side
    189,034.90x = 15,858,969,510.11
  5. Step 5: Solve for x
    x = 15,858,969,510.11/189,034.90
  6. Step 6: Final answer
    x = 83,894.40

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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.