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Finding the Fourth Proportional to 239,419.05, 358,241.48 and 191,889.98

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Solution

The fourth proportional to 239,419.05, 358,241.48 and 191,889.98 is: 287,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,419.05 : 358,241.48 = 191,889.98 : x
  2. Step 2: Convert to fraction form
    239,419.05/358,241.48 = 191,889.98/x
  3. Step 3: Cross multiply
    239,419.05x = 358,241.48 × 191,889.98
  4. Step 4: Simplify right side
    239,419.05x = 68,742,950,432.37
  5. Step 5: Solve for x
    x = 68,742,950,432.37/239,419.05
  6. Step 6: Final answer
    x = 287,123.98

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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.