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Finding the Fourth Proportional to 93,580.86, 129,104.95 and 57,708.60

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Solution

The fourth proportional to 93,580.86, 129,104.95 and 57,708.60 is: 79,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,580.86 : 129,104.95 = 57,708.60 : x
  2. Step 2: Convert to fraction form
    93,580.86/129,104.95 = 57,708.60/x
  3. Step 3: Cross multiply
    93,580.86x = 129,104.95 × 57,708.60
  4. Step 4: Simplify right side
    93,580.86x = 7,450,465,917.57
  5. Step 5: Solve for x
    x = 7,450,465,917.57/93,580.86
  6. Step 6: Final answer
    x = 79,615.28

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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.