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Finding the Fourth Proportional to 194,243.84, 291,365.76 and 69,672.32

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Solution

The fourth proportional to 194,243.84, 291,365.76 and 69,672.32 is: 104,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,243.84 : 291,365.76 = 69,672.32 : x
  2. Step 2: Convert to fraction form
    194,243.84/291,365.76 = 69,672.32/x
  3. Step 3: Cross multiply
    194,243.84x = 291,365.76 × 69,672.32
  4. Step 4: Simplify right side
    194,243.84x = 20,300,128,467.76
  5. Step 5: Solve for x
    x = 20,300,128,467.76/194,243.84
  6. Step 6: Final answer
    x = 104,508.48

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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.