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Finding the Fourth Proportional to 248,365.50, 342,744.39 and 135,189.06

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Solution

The fourth proportional to 248,365.50, 342,744.39 and 135,189.06 is: 186,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,365.50 : 342,744.39 = 135,189.06 : x
  2. Step 2: Convert to fraction form
    248,365.50/342,744.39 = 135,189.06/x
  3. Step 3: Cross multiply
    248,365.50x = 342,744.39 × 135,189.06
  4. Step 4: Simplify right side
    248,365.50x = 46,335,291,904.37
  5. Step 5: Solve for x
    x = 46,335,291,904.37/248,365.50
  6. Step 6: Final answer
    x = 186,560.90

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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.