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Finding the Fourth Proportional to 92,835, 128,112.40 and 50,393.52

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Solution

The fourth proportional to 92,835, 128,112.40 and 50,393.52 is: 69,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,835 : 128,112.40 = 50,393.52 : x
  2. Step 2: Convert to fraction form
    92,835/128,112.40 = 50,393.52/x
  3. Step 3: Cross multiply
    92,835x = 128,112.40 × 50,393.52
  4. Step 4: Simplify right side
    92,835x = 6,456,034,791.65
  5. Step 5: Solve for x
    x = 6,456,034,791.65/92,835
  6. Step 6: Final answer
    x = 69,543.11

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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.