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Finding the Fourth Proportional to 94,908.80, 130,980.32 and 54,627.52

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Solution

The fourth proportional to 94,908.80, 130,980.32 and 54,627.52 is: 75,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,908.80 : 130,980.32 = 54,627.52 : x
  2. Step 2: Convert to fraction form
    94,908.80/130,980.32 = 54,627.52/x
  3. Step 3: Cross multiply
    94,908.80x = 130,980.32 × 54,627.52
  4. Step 4: Simplify right side
    94,908.80x = 7,155,130,050.41
  5. Step 5: Solve for x
    x = 7,155,130,050.41/94,908.80
  6. Step 6: Final answer
    x = 75,389.53

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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.