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Finding the Fourth Proportional to 104,955.63, 144,836.61 and 57,208.56

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Solution

The fourth proportional to 104,955.63, 144,836.61 and 57,208.56 is: 78,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,955.63 : 144,836.61 = 57,208.56 : x
  2. Step 2: Convert to fraction form
    104,955.63/144,836.61 = 57,208.56/x
  3. Step 3: Cross multiply
    104,955.63x = 144,836.61 × 57,208.56
  4. Step 4: Simplify right side
    104,955.63x = 8,285,893,893.38
  5. Step 5: Solve for x
    x = 8,285,893,893.38/104,955.63
  6. Step 6: Final answer
    x = 78,946.64

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1.5x scale

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.