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Finding the Fourth Proportional to 152,977.92, 211,124.52 and 88,449.90

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Solution

The fourth proportional to 152,977.92, 211,124.52 and 88,449.90 is: 122,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,977.92 : 211,124.52 = 88,449.90 : x
  2. Step 2: Convert to fraction form
    152,977.92/211,124.52 = 88,449.90/x
  3. Step 3: Cross multiply
    152,977.92x = 211,124.52 × 88,449.90
  4. Step 4: Simplify right side
    152,977.92x = 18,673,942,681.55
  5. Step 5: Solve for x
    x = 18,673,942,681.55/152,977.92
  6. Step 6: Final answer
    x = 122,069.53

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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.