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Finding the Fourth Proportional to 92,970.86, 128,299.02 and 50,529.66

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Solution

The fourth proportional to 92,970.86, 128,299.02 and 50,529.66 is: 69,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,970.86 : 128,299.02 = 50,529.66 : x
  2. Step 2: Convert to fraction form
    92,970.86/128,299.02 = 50,529.66/x
  3. Step 3: Cross multiply
    92,970.86x = 128,299.02 × 50,529.66
  4. Step 4: Simplify right side
    92,970.86x = 6,482,905,858.93
  5. Step 5: Solve for x
    x = 6,482,905,858.93/92,970.86
  6. Step 6: Final answer
    x = 69,730.51

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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.