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Finding the Fourth Proportional to 260,228.48, 390,342.72 and 63,236.48

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Solution

The fourth proportional to 260,228.48, 390,342.72 and 63,236.48 is: 94,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,228.48 : 390,342.72 = 63,236.48 : x
  2. Step 2: Convert to fraction form
    260,228.48/390,342.72 = 63,236.48/x
  3. Step 3: Cross multiply
    260,228.48x = 390,342.72 × 63,236.48
  4. Step 4: Simplify right side
    260,228.48x = 24,683,899,606.43
  5. Step 5: Solve for x
    x = 24,683,899,606.43/260,228.48
  6. Step 6: Final answer
    x = 94,854.72

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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.