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Finding the Fourth Proportional to 84,595.07, 116,895.16 and 80,495.66

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Solution

The fourth proportional to 84,595.07, 116,895.16 and 80,495.66 is: 111,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,595.07 : 116,895.16 = 80,495.66 : x
  2. Step 2: Convert to fraction form
    84,595.07/116,895.16 = 80,495.66/x
  3. Step 3: Cross multiply
    84,595.07x = 116,895.16 × 80,495.66
  4. Step 4: Simplify right side
    84,595.07x = 9,409,553,055.01
  5. Step 5: Solve for x
    x = 9,409,553,055.01/84,595.07
  6. Step 6: Final answer
    x = 111,230.51

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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.