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Finding the Fourth Proportional to 189,070.44, 260,918.04 and 104,187.60

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Solution

The fourth proportional to 189,070.44, 260,918.04 and 104,187.60 is: 143,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,070.44 : 260,918.04 = 104,187.60 : x
  2. Step 2: Convert to fraction form
    189,070.44/260,918.04 = 104,187.60/x
  3. Step 3: Cross multiply
    189,070.44x = 260,918.04 × 104,187.60
  4. Step 4: Simplify right side
    189,070.44x = 27,184,424,384.30
  5. Step 5: Solve for x
    x = 27,184,424,384.30/189,070.44
  6. Step 6: Final answer
    x = 143,779.35

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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.