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Finding the Fourth Proportional to 73,075.45, 100,852.62 and 60,789.15

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Solution

The fourth proportional to 73,075.45, 100,852.62 and 60,789.15 is: 83,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,075.45 : 100,852.62 = 60,789.15 : x
  2. Step 2: Convert to fraction form
    73,075.45/100,852.62 = 60,789.15/x
  3. Step 3: Cross multiply
    73,075.45x = 100,852.62 × 60,789.15
  4. Step 4: Simplify right side
    73,075.45x = 6,130,744,894.83
  5. Step 5: Solve for x
    x = 6,130,744,894.83/73,075.45
  6. Step 6: Final answer
    x = 83,896.10

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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.