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Finding the Fourth Proportional to 104,866.65, 144,715.01 and 57,119.58

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Solution

The fourth proportional to 104,866.65, 144,715.01 and 57,119.58 is: 78,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,866.65 : 144,715.01 = 57,119.58 : x
  2. Step 2: Convert to fraction form
    104,866.65/144,715.01 = 57,119.58/x
  3. Step 3: Cross multiply
    104,866.65x = 144,715.01 × 57,119.58
  4. Step 4: Simplify right side
    104,866.65x = 8,266,060,305.30
  5. Step 5: Solve for x
    x = 8,266,060,305.30/104,866.65
  6. Step 6: Final answer
    x = 78,824.49

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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.