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Finding the Fourth Proportional to 189,594.60, 261,656.02 and 109,048.20

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Solution

The fourth proportional to 189,594.60, 261,656.02 and 109,048.20 is: 150,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,594.60 : 261,656.02 = 109,048.20 : x
  2. Step 2: Convert to fraction form
    189,594.60/261,656.02 = 109,048.20/x
  3. Step 3: Cross multiply
    189,594.60x = 261,656.02 × 109,048.20
  4. Step 4: Simplify right side
    189,594.60x = 28,533,118,000.16
  5. Step 5: Solve for x
    x = 28,533,118,000.16/189,594.60
  6. Step 6: Final answer
    x = 150,495.41

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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.