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Finding the Fourth Proportional to 189,004.32, 283,421.16 and 55,838.16

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Solution

The fourth proportional to 189,004.32, 283,421.16 and 55,838.16 is: 83,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,004.32 : 283,421.16 = 55,838.16 : x
  2. Step 2: Convert to fraction form
    189,004.32/283,421.16 = 55,838.16/x
  3. Step 3: Cross multiply
    189,004.32x = 283,421.16 × 55,838.16
  4. Step 4: Simplify right side
    189,004.32x = 15,825,716,079.47
  5. Step 5: Solve for x
    x = 15,825,716,079.47/189,004.32
  6. Step 6: Final answer
    x = 83,732.03

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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.