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Finding the Fourth Proportional to 100,191.65, 150,287.48 and 25,312.01

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Solution

The fourth proportional to 100,191.65, 150,287.48 and 25,312.01 is: 37,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,191.65 : 150,287.48 = 25,312.01 : x
  2. Step 2: Convert to fraction form
    100,191.65/150,287.48 = 25,312.01/x
  3. Step 3: Cross multiply
    100,191.65x = 150,287.48 × 25,312.01
  4. Step 4: Simplify right side
    100,191.65x = 3,804,078,635.63
  5. Step 5: Solve for x
    x = 3,804,078,635.63/100,191.65
  6. Step 6: Final answer
    x = 37,968.02

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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.