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Finding the Fourth Proportional to 103,484.46, 155,086.29 and 47,254.85

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Solution

The fourth proportional to 103,484.46, 155,086.29 and 47,254.85 is: 70,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484.46 : 155,086.29 = 47,254.85 : x
  2. Step 2: Convert to fraction form
    103,484.46/155,086.29 = 47,254.85/x
  3. Step 3: Cross multiply
    103,484.46x = 155,086.29 × 47,254.85
  4. Step 4: Simplify right side
    103,484.46x = 7,328,578,595.58
  5. Step 5: Solve for x
    x = 7,328,578,595.58/103,484.46
  6. Step 6: Final answer
    x = 70,818.16

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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.