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Finding the Fourth Proportional to 94,600, 130,548.90 and 52,160.05

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Solution

The fourth proportional to 94,600, 130,548.90 and 52,160.05 is: 71,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,600 : 130,548.90 = 52,160.05 : x
  2. Step 2: Convert to fraction form
    94,600/130,548.90 = 52,160.05/x
  3. Step 3: Cross multiply
    94,600x = 130,548.90 × 52,160.05
  4. Step 4: Simplify right side
    94,600x = 6,809,437,151.45
  5. Step 5: Solve for x
    x = 6,809,437,151.45/94,600
  6. Step 6: Final answer
    x = 71,981.37

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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.