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Finding the Fourth Proportional to 189,482.52, 261,485.60 and 104,599.36

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Solution

The fourth proportional to 189,482.52, 261,485.60 and 104,599.36 is: 144,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,482.52 : 261,485.60 = 104,599.36 : x
  2. Step 2: Convert to fraction form
    189,482.52/261,485.60 = 104,599.36/x
  3. Step 3: Cross multiply
    189,482.52x = 261,485.60 × 104,599.36
  4. Step 4: Simplify right side
    189,482.52x = 27,351,226,409.22
  5. Step 5: Solve for x
    x = 27,351,226,409.22/189,482.52
  6. Step 6: Final answer
    x = 144,346.96

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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.