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Finding the Fourth Proportional to 248,354.32, 372,530.94 and 90,518.26

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Solution

The fourth proportional to 248,354.32, 372,530.94 and 90,518.26 is: 135,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,354.32 : 372,530.94 = 90,518.26 : x
  2. Step 2: Convert to fraction form
    248,354.32/372,530.94 = 90,518.26/x
  3. Step 3: Cross multiply
    248,354.32x = 372,530.94 × 90,518.26
  4. Step 4: Simplify right side
    248,354.32x = 33,720,852,484.96
  5. Step 5: Solve for x
    x = 33,720,852,484.96/248,354.32
  6. Step 6: Final answer
    x = 135,777.19

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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.