Home / 123,761,075.66-170,780,286.01-71,553,475.78

Finding the Fourth Proportional to 123,761,075.66, 170,780,286.01 and 71,553,475.78

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Solution

The fourth proportional to 123,761,075.66, 170,780,286.01 and 71,553,475.78 is: 98,738,015.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761,075.66 : 170,780,286.01 = 71,553,475.78 : x
  2. Step 2: Convert to fraction form
    123,761,075.66/170,780,286.01 = 71,553,475.78/x
  3. Step 3: Cross multiply
    123,761,075.66x = 170,780,286.01 × 71,553,475.78
  4. Step 4: Simplify right side
    123,761,075.66x = 12,219,923,058,718,008
  5. Step 5: Solve for x
    x = 12,219,923,058,718,008/123,761,075.66
  6. Step 6: Final answer
    x = 98,738,015.92

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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.