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Finding the Fourth Proportional to 189,007.02, 260,829.67 and 104,124.08

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Solution

The fourth proportional to 189,007.02, 260,829.67 and 104,124.08 is: 143,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.02 : 260,829.67 = 104,124.08 : x
  2. Step 2: Convert to fraction form
    189,007.02/260,829.67 = 104,124.08/x
  3. Step 3: Cross multiply
    189,007.02x = 260,829.67 × 104,124.08
  4. Step 4: Simplify right side
    189,007.02x = 27,158,649,425.45
  5. Step 5: Solve for x
    x = 27,158,649,425.45/189,007.02
  6. Step 6: Final answer
    x = 143,691.22

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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.