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Finding the Fourth Proportional to 108,565.68, 162,792.96 and 45,368.54

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Solution

The fourth proportional to 108,565.68, 162,792.96 and 45,368.54 is: 68,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,565.68 : 162,792.96 = 45,368.54 : x
  2. Step 2: Convert to fraction form
    108,565.68/162,792.96 = 45,368.54/x
  3. Step 3: Cross multiply
    108,565.68x = 162,792.96 × 45,368.54
  4. Step 4: Simplify right side
    108,565.68x = 7,385,678,103.51
  5. Step 5: Solve for x
    x = 7,385,678,103.51/108,565.68
  6. Step 6: Final answer
    x = 68,029.58

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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.