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Finding the Fourth Proportional to 84,165.87, 116,160.01 and 53,541.95

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Solution

The fourth proportional to 84,165.87, 116,160.01 and 53,541.95 is: 73,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,165.87 : 116,160.01 = 53,541.95 : x
  2. Step 2: Convert to fraction form
    84,165.87/116,160.01 = 53,541.95/x
  3. Step 3: Cross multiply
    84,165.87x = 116,160.01 × 53,541.95
  4. Step 4: Simplify right side
    84,165.87x = 6,219,433,447.42
  5. Step 5: Solve for x
    x = 6,219,433,447.42/84,165.87
  6. Step 6: Final answer
    x = 73,894.96

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1.5x scale

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.