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Finding the Fourth Proportional to 163,452.61, 245,193.02 and 45,123.96

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Solution

The fourth proportional to 163,452.61, 245,193.02 and 45,123.96 is: 67,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,452.61 : 245,193.02 = 45,123.96 : x
  2. Step 2: Convert to fraction form
    163,452.61/245,193.02 = 45,123.96/x
  3. Step 3: Cross multiply
    163,452.61x = 245,193.02 × 45,123.96
  4. Step 4: Simplify right side
    163,452.61x = 11,064,080,026.76
  5. Step 5: Solve for x
    x = 11,064,080,026.76/163,452.61
  6. Step 6: Final answer
    x = 67,689.83

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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.