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Finding the Fourth Proportional to 209,570.63, 289,195.74 and 114,071.63

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Solution

The fourth proportional to 209,570.63, 289,195.74 and 114,071.63 is: 157,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,570.63 : 289,195.74 = 114,071.63 : x
  2. Step 2: Convert to fraction form
    209,570.63/289,195.74 = 114,071.63/x
  3. Step 3: Cross multiply
    209,570.63x = 289,195.74 × 114,071.63
  4. Step 4: Simplify right side
    209,570.63x = 32,989,029,450.86
  5. Step 5: Solve for x
    x = 32,989,029,450.86/209,570.63
  6. Step 6: Final answer
    x = 157,412.46

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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.