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Finding the Fourth Proportional to 217,222.44, 325,878.60 and 104,980.76

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Solution

The fourth proportional to 217,222.44, 325,878.60 and 104,980.76 is: 157,492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,222.44 : 325,878.60 = 104,980.76 : x
  2. Step 2: Convert to fraction form
    217,222.44/325,878.60 = 104,980.76/x
  3. Step 3: Cross multiply
    217,222.44x = 325,878.60 × 104,980.76
  4. Step 4: Simplify right side
    217,222.44x = 34,210,983,095.74
  5. Step 5: Solve for x
    x = 34,210,983,095.74/217,222.44
  6. Step 6: Final answer
    x = 157,492.86

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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.