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Finding the Fourth Proportional to 248,643.81, 373,075.97 and 130,287.01

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Solution

The fourth proportional to 248,643.81, 373,075.97 and 130,287.01 is: 195,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,643.81 : 373,075.97 = 130,287.01 : x
  2. Step 2: Convert to fraction form
    248,643.81/373,075.97 = 130,287.01/x
  3. Step 3: Cross multiply
    248,643.81x = 373,075.97 × 130,287.01
  4. Step 4: Simplify right side
    248,643.81x = 48,606,952,634.15
  5. Step 5: Solve for x
    x = 48,606,952,634.15/248,643.81
  6. Step 6: Final answer
    x = 195,488.29

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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.