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Finding the Fourth Proportional to 294,830.60, 441,721.02 and 136,783.40

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Solution

The fourth proportional to 294,830.60, 441,721.02 and 136,783.40 is: 204,931.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,830.60 : 441,721.02 = 136,783.40 : x
  2. Step 2: Convert to fraction form
    294,830.60/441,721.02 = 136,783.40/x
  3. Step 3: Cross multiply
    294,830.60x = 441,721.02 × 136,783.40
  4. Step 4: Simplify right side
    294,830.60x = 60,420,102,967.07
  5. Step 5: Solve for x
    x = 60,420,102,967.07/294,830.60
  6. Step 6: Final answer
    x = 204,931.59

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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.