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Finding the Fourth Proportional to 104,762.79, 144,573.09 and 57,016.59

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Solution

The fourth proportional to 104,762.79, 144,573.09 and 57,016.59 is: 78,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,762.79 : 144,573.09 = 57,016.59 : x
  2. Step 2: Convert to fraction form
    104,762.79/144,573.09 = 57,016.59/x
  3. Step 3: Cross multiply
    104,762.79x = 144,573.09 × 57,016.59
  4. Step 4: Simplify right side
    104,762.79x = 8,243,064,597.56
  5. Step 5: Solve for x
    x = 8,243,064,597.56/104,762.79
  6. Step 6: Final answer
    x = 78,683.13

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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.