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Finding the Fourth Proportional to 92,803.50, 128,068.92 and 50,362.04

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Solution

The fourth proportional to 92,803.50, 128,068.92 and 50,362.04 is: 69,499.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,803.50 : 128,068.92 = 50,362.04 : x
  2. Step 2: Convert to fraction form
    92,803.50/128,068.92 = 50,362.04/x
  3. Step 3: Cross multiply
    92,803.50x = 128,068.92 × 50,362.04
  4. Step 4: Simplify right side
    92,803.50x = 6,449,811,431.45
  5. Step 5: Solve for x
    x = 6,449,811,431.45/92,803.50
  6. Step 6: Final answer
    x = 69,499.66

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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.