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Finding the Fourth Proportional to 92,969.36, 128,298.72 and 50,527.90

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Solution

The fourth proportional to 92,969.36, 128,298.72 and 50,527.90 is: 69,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,969.36 : 128,298.72 = 50,527.90 : x
  2. Step 2: Convert to fraction form
    92,969.36/128,298.72 = 50,527.90/x
  3. Step 3: Cross multiply
    92,969.36x = 128,298.72 × 50,527.90
  4. Step 4: Simplify right side
    92,969.36x = 6,482,664,894.29
  5. Step 5: Solve for x
    x = 6,482,664,894.29/92,969.36
  6. Step 6: Final answer
    x = 69,729.05

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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.