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Finding the Fourth Proportional to 92,075.81, 127,065.93 and 54,350.06

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Solution

The fourth proportional to 92,075.81, 127,065.93 and 54,350.06 is: 75,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,075.81 : 127,065.93 = 54,350.06 : x
  2. Step 2: Convert to fraction form
    92,075.81/127,065.93 = 54,350.06/x
  3. Step 3: Cross multiply
    92,075.81x = 127,065.93 × 54,350.06
  4. Step 4: Simplify right side
    92,075.81x = 6,906,040,919.46
  5. Step 5: Solve for x
    x = 6,906,040,919.46/92,075.81
  6. Step 6: Final answer
    x = 75,003.86

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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.