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Finding the Fourth Proportional to 325,220.22, 487,709.10 and 111,928.50

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Solution

The fourth proportional to 325,220.22, 487,709.10 and 111,928.50 is: 167,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,220.22 : 487,709.10 = 111,928.50 : x
  2. Step 2: Convert to fraction form
    325,220.22/487,709.10 = 111,928.50/x
  3. Step 3: Cross multiply
    325,220.22x = 487,709.10 × 111,928.50
  4. Step 4: Simplify right side
    325,220.22x = 54,588,547,999.35
  5. Step 5: Solve for x
    x = 54,588,547,999.35/325,220.22
  6. Step 6: Final answer
    x = 167,851.03

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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.