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Finding the Fourth Proportional to 184,438.60, 276,657.90 and 109,643.20

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Solution

The fourth proportional to 184,438.60, 276,657.90 and 109,643.20 is: 164,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,438.60 : 276,657.90 = 109,643.20 : x
  2. Step 2: Convert to fraction form
    184,438.60/276,657.90 = 109,643.20/x
  3. Step 3: Cross multiply
    184,438.60x = 276,657.90 × 109,643.20
  4. Step 4: Simplify right side
    184,438.60x = 30,333,657,461.28
  5. Step 5: Solve for x
    x = 30,333,657,461.28/184,438.60
  6. Step 6: Final answer
    x = 164,464.80

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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.