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Finding the Fourth Proportional to 191,525.61, 287,325.33 and 65,160.75

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Solution

The fourth proportional to 191,525.61, 287,325.33 and 65,160.75 is: 97,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,525.61 : 287,325.33 = 65,160.75 : x
  2. Step 2: Convert to fraction form
    191,525.61/287,325.33 = 65,160.75/x
  3. Step 3: Cross multiply
    191,525.61x = 287,325.33 × 65,160.75
  4. Step 4: Simplify right side
    191,525.61x = 18,722,334,829.91
  5. Step 5: Solve for x
    x = 18,722,334,829.91/191,525.61
  6. Step 6: Final answer
    x = 97,753.69

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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.