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Finding the Fourth Proportional to 94,894.92, 130,954.95 and 57,176.46

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Solution

The fourth proportional to 94,894.92, 130,954.95 and 57,176.46 is: 78,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,894.92 : 130,954.95 = 57,176.46 : x
  2. Step 2: Convert to fraction form
    94,894.92/130,954.95 = 57,176.46/x
  3. Step 3: Cross multiply
    94,894.92x = 130,954.95 × 57,176.46
  4. Step 4: Simplify right side
    94,894.92x = 7,487,540,460.48
  5. Step 5: Solve for x
    x = 7,487,540,460.48/94,894.92
  6. Step 6: Final answer
    x = 78,903.49

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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.