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Finding the Fourth Proportional to 219,392.40, 328,829.40 and 93,032.40

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Solution

The fourth proportional to 219,392.40, 328,829.40 and 93,032.40 is: 139,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,392.40 : 328,829.40 = 93,032.40 : x
  2. Step 2: Convert to fraction form
    219,392.40/328,829.40 = 93,032.40/x
  3. Step 3: Cross multiply
    219,392.40x = 328,829.40 × 93,032.40
  4. Step 4: Simplify right side
    219,392.40x = 30,591,788,272.56
  5. Step 5: Solve for x
    x = 30,591,788,272.56/219,392.40
  6. Step 6: Final answer
    x = 139,438.69

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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.