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Finding the Fourth Proportional to 191,174.19, 286,742.64 and 58,055.60

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Solution

The fourth proportional to 191,174.19, 286,742.64 and 58,055.60 is: 87,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,174.19 : 286,742.64 = 58,055.60 : x
  2. Step 2: Convert to fraction form
    191,174.19/286,742.64 = 58,055.60/x
  3. Step 3: Cross multiply
    191,174.19x = 286,742.64 × 58,055.60
  4. Step 4: Simplify right side
    191,174.19x = 16,647,014,577.07
  5. Step 5: Solve for x
    x = 16,647,014,577.07/191,174.19
  6. Step 6: Final answer
    x = 87,077.73

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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.