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Finding the Fourth Proportional to 88,421.74, 122,038.81 and 50,184.87

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Solution

The fourth proportional to 88,421.74, 122,038.81 and 50,184.87 is: 69,264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,421.74 : 122,038.81 = 50,184.87 : x
  2. Step 2: Convert to fraction form
    88,421.74/122,038.81 = 50,184.87/x
  3. Step 3: Cross multiply
    88,421.74x = 122,038.81 × 50,184.87
  4. Step 4: Simplify right side
    88,421.74x = 6,124,501,584.56
  5. Step 5: Solve for x
    x = 6,124,501,584.56/88,421.74
  6. Step 6: Final answer
    x = 69,264.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.