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Finding the Fourth Proportional to 78,588.56, 108,446.44 and 46,751.52

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Solution

The fourth proportional to 78,588.56, 108,446.44 and 46,751.52 is: 64,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588.56 : 108,446.44 = 46,751.52 : x
  2. Step 2: Convert to fraction form
    78,588.56/108,446.44 = 46,751.52/x
  3. Step 3: Cross multiply
    78,588.56x = 108,446.44 × 46,751.52
  4. Step 4: Simplify right side
    78,588.56x = 5,070,035,908.59
  5. Step 5: Solve for x
    x = 5,070,035,908.59/78,588.56
  6. Step 6: Final answer
    x = 64,513.66

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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.