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Finding the Fourth Proportional to 92,866.50, 128,152.32 and 50,424.12

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Solution

The fourth proportional to 92,866.50, 128,152.32 and 50,424.12 is: 69,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,866.50 : 128,152.32 = 50,424.12 : x
  2. Step 2: Convert to fraction form
    92,866.50/128,152.32 = 50,424.12/x
  3. Step 3: Cross multiply
    92,866.50x = 128,152.32 × 50,424.12
  4. Step 4: Simplify right side
    92,866.50x = 6,461,967,961.96
  5. Step 5: Solve for x
    x = 6,461,967,961.96/92,866.50
  6. Step 6: Final answer
    x = 69,583.41

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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.