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Finding the Fourth Proportional to 100,602.90, 150,904.32 and 25,723.20

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Solution

The fourth proportional to 100,602.90, 150,904.32 and 25,723.20 is: 38,584.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602.90 : 150,904.32 = 25,723.20 : x
  2. Step 2: Convert to fraction form
    100,602.90/150,904.32 = 25,723.20/x
  3. Step 3: Cross multiply
    100,602.90x = 150,904.32 × 25,723.20
  4. Step 4: Simplify right side
    100,602.90x = 3,881,742,004.22
  5. Step 5: Solve for x
    x = 3,881,742,004.22/100,602.90
  6. Step 6: Final answer
    x = 38,584.79

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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.