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Finding the Fourth Proportional to 219,173, 302,460.36 and 134,346.56

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Solution

The fourth proportional to 219,173, 302,460.36 and 134,346.56 is: 185,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,173 : 302,460.36 = 134,346.56 : x
  2. Step 2: Convert to fraction form
    219,173/302,460.36 = 134,346.56/x
  3. Step 3: Cross multiply
    219,173x = 302,460.36 × 134,346.56
  4. Step 4: Simplify right side
    219,173x = 40,634,508,902.36
  5. Step 5: Solve for x
    x = 40,634,508,902.36/219,173
  6. Step 6: Final answer
    x = 185,399.25

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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.