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Finding the Fourth Proportional to 54,195.70, 81,293.55 and 51,603.70

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Solution

The fourth proportional to 54,195.70, 81,293.55 and 51,603.70 is: 77,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,195.70 : 81,293.55 = 51,603.70 : x
  2. Step 2: Convert to fraction form
    54,195.70/81,293.55 = 51,603.70/x
  3. Step 3: Cross multiply
    54,195.70x = 81,293.55 × 51,603.70
  4. Step 4: Simplify right side
    54,195.70x = 4,195,047,966.14
  5. Step 5: Solve for x
    x = 4,195,047,966.14/54,195.70
  6. Step 6: Final answer
    x = 77,405.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.