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Finding the Fourth Proportional to 191,126.69, 286,690.95 and 58,008.10

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Solution

The fourth proportional to 191,126.69, 286,690.95 and 58,008.10 is: 87,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,126.69 : 286,690.95 = 58,008.10 : x
  2. Step 2: Convert to fraction form
    191,126.69/286,690.95 = 58,008.10/x
  3. Step 3: Cross multiply
    191,126.69x = 286,690.95 × 58,008.10
  4. Step 4: Simplify right side
    191,126.69x = 16,630,398,158.44
  5. Step 5: Solve for x
    x = 16,630,398,158.44/191,126.69
  6. Step 6: Final answer
    x = 87,012.43

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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.