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Finding the Fourth Proportional to 92,803.77, 128,069.21 and 50,362.31

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Solution

The fourth proportional to 92,803.77, 128,069.21 and 50,362.31 is: 69,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,803.77 : 128,069.21 = 50,362.31 : x
  2. Step 2: Convert to fraction form
    92,803.77/128,069.21 = 50,362.31/x
  3. Step 3: Cross multiply
    92,803.77x = 128,069.21 × 50,362.31
  4. Step 4: Simplify right side
    92,803.77x = 6,449,860,363.32
  5. Step 5: Solve for x
    x = 6,449,860,363.32/92,803.77
  6. Step 6: Final answer
    x = 69,499.98

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1.5x scale

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.