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Finding the Fourth Proportional to 191,319.98, 286,936.14 and 56,349.14

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Solution

The fourth proportional to 191,319.98, 286,936.14 and 56,349.14 is: 84,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,319.98 : 286,936.14 = 56,349.14 : x
  2. Step 2: Convert to fraction form
    191,319.98/286,936.14 = 56,349.14/x
  3. Step 3: Cross multiply
    191,319.98x = 286,936.14 × 56,349.14
  4. Step 4: Simplify right side
    191,319.98x = 16,168,604,723.92
  5. Step 5: Solve for x
    x = 16,168,604,723.92/191,319.98
  6. Step 6: Final answer
    x = 84,510.80

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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.