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Finding the Fourth Proportional to 316,283.64, 436,477.73 and 173,046.76

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Solution

The fourth proportional to 316,283.64, 436,477.73 and 173,046.76 is: 238,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,283.64 : 436,477.73 = 173,046.76 : x
  2. Step 2: Convert to fraction form
    316,283.64/436,477.73 = 173,046.76/x
  3. Step 3: Cross multiply
    316,283.64x = 436,477.73 × 173,046.76
  4. Step 4: Simplify right side
    316,283.64x = 75,531,056,988.65
  5. Step 5: Solve for x
    x = 75,531,056,988.65/316,283.64
  6. Step 6: Final answer
    x = 238,807.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.