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Finding the Fourth Proportional to 69,484.41, 103,977.47 and 60,156.51

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Solution

The fourth proportional to 69,484.41, 103,977.47 and 60,156.51 is: 90,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,484.41 : 103,977.47 = 60,156.51 : x
  2. Step 2: Convert to fraction form
    69,484.41/103,977.47 = 60,156.51/x
  3. Step 3: Cross multiply
    69,484.41x = 103,977.47 × 60,156.51
  4. Step 4: Simplify right side
    69,484.41x = 6,254,920,893.16
  5. Step 5: Solve for x
    x = 6,254,920,893.16/69,484.41
  6. Step 6: Final answer
    x = 90,019.06

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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.