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Finding the Fourth Proportional to 92,478.64, 127,619.84 and 50,036.56

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Solution

The fourth proportional to 92,478.64, 127,619.84 and 50,036.56 is: 69,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,478.64 : 127,619.84 = 50,036.56 : x
  2. Step 2: Convert to fraction form
    92,478.64/127,619.84 = 50,036.56/x
  3. Step 3: Cross multiply
    92,478.64x = 127,619.84 × 50,036.56
  4. Step 4: Simplify right side
    92,478.64x = 6,385,657,781.35
  5. Step 5: Solve for x
    x = 6,385,657,781.35/92,478.64
  6. Step 6: Final answer
    x = 69,050.08

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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.