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Finding the Fourth Proportional to 92,950.50, 128,271.69 and 55,224.75

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Solution

The fourth proportional to 92,950.50, 128,271.69 and 55,224.75 is: 76,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,950.50 : 128,271.69 = 55,224.75 : x
  2. Step 2: Convert to fraction form
    92,950.50/128,271.69 = 55,224.75/x
  3. Step 3: Cross multiply
    92,950.50x = 128,271.69 × 55,224.75
  4. Step 4: Simplify right side
    92,950.50x = 7,083,772,012.33
  5. Step 5: Solve for x
    x = 7,083,772,012.33/92,950.50
  6. Step 6: Final answer
    x = 76,210.16

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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.