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Finding the Fourth Proportional to 92,950.74, 128,272.84 and 50,509.28

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Solution

The fourth proportional to 92,950.74, 128,272.84 and 50,509.28 is: 69,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,950.74 : 128,272.84 = 50,509.28 : x
  2. Step 2: Convert to fraction form
    92,950.74/128,272.84 = 50,509.28/x
  3. Step 3: Cross multiply
    92,950.74x = 128,272.84 × 50,509.28
  4. Step 4: Simplify right side
    92,950.74x = 6,478,968,791.96
  5. Step 5: Solve for x
    x = 6,478,968,791.96/92,950.74
  6. Step 6: Final answer
    x = 69,703.25

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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.