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Finding the Fourth Proportional to 97,696.53, 134,674.25 and 76,438.89

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Solution

The fourth proportional to 97,696.53, 134,674.25 and 76,438.89 is: 105,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,696.53 : 134,674.25 = 76,438.89 : x
  2. Step 2: Convert to fraction form
    97,696.53/134,674.25 = 76,438.89/x
  3. Step 3: Cross multiply
    97,696.53x = 134,674.25 × 76,438.89
  4. Step 4: Simplify right side
    97,696.53x = 10,294,349,799.39
  5. Step 5: Solve for x
    x = 10,294,349,799.39/97,696.53
  6. Step 6: Final answer
    x = 105,370.68

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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.