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Finding the Fourth Proportional to 73,017.73, 100,810.09 and 55,989.26

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Solution

The fourth proportional to 73,017.73, 100,810.09 and 55,989.26 is: 77,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.73 : 100,810.09 = 55,989.26 : x
  2. Step 2: Convert to fraction form
    73,017.73/100,810.09 = 55,989.26/x
  3. Step 3: Cross multiply
    73,017.73x = 100,810.09 × 55,989.26
  4. Step 4: Simplify right side
    73,017.73x = 5,644,282,339.63
  5. Step 5: Solve for x
    x = 5,644,282,339.63/73,017.73
  6. Step 6: Final answer
    x = 77,300.16

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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.