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Finding the Fourth Proportional to 191,762.28, 287,640.99 and 58,646.88

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Solution

The fourth proportional to 191,762.28, 287,640.99 and 58,646.88 is: 87,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,762.28 : 287,640.99 = 58,646.88 : x
  2. Step 2: Convert to fraction form
    191,762.28/287,640.99 = 58,646.88/x
  3. Step 3: Cross multiply
    191,762.28x = 287,640.99 × 58,646.88
  4. Step 4: Simplify right side
    191,762.28x = 16,869,246,623.61
  5. Step 5: Solve for x
    x = 16,869,246,623.61/191,762.28
  6. Step 6: Final answer
    x = 87,969.58

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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.