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Finding the Fourth Proportional to 235,670.88, 325,237.20 and 135,069.12

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Solution

The fourth proportional to 235,670.88, 325,237.20 and 135,069.12 is: 186,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,670.88 : 325,237.20 = 135,069.12 : x
  2. Step 2: Convert to fraction form
    235,670.88/325,237.20 = 135,069.12/x
  3. Step 3: Cross multiply
    235,670.88x = 325,237.20 × 135,069.12
  4. Step 4: Simplify right side
    235,670.88x = 43,929,502,395.26
  5. Step 5: Solve for x
    x = 43,929,502,395.26/235,670.88
  6. Step 6: Final answer
    x = 186,401.91

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1.5x scale

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.