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Finding the Fourth Proportional to 117,693.95, 162,441.25 and 69,938.07

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Solution

The fourth proportional to 117,693.95, 162,441.25 and 69,938.07 is: 96,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,693.95 : 162,441.25 = 69,938.07 : x
  2. Step 2: Convert to fraction form
    117,693.95/162,441.25 = 69,938.07/x
  3. Step 3: Cross multiply
    117,693.95x = 162,441.25 × 69,938.07
  4. Step 4: Simplify right side
    117,693.95x = 11,360,826,729.39
  5. Step 5: Solve for x
    x = 11,360,826,729.39/117,693.95
  6. Step 6: Final answer
    x = 96,528.56

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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.