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Finding the Fourth Proportional to 75,369.42, 104,019.66 and 43,538.58

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Solution

The fourth proportional to 75,369.42, 104,019.66 and 43,538.58 is: 60,088.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,369.42 : 104,019.66 = 43,538.58 : x
  2. Step 2: Convert to fraction form
    75,369.42/104,019.66 = 43,538.58/x
  3. Step 3: Cross multiply
    75,369.42x = 104,019.66 × 43,538.58
  4. Step 4: Simplify right side
    75,369.42x = 4,528,868,288.48
  5. Step 5: Solve for x
    x = 4,528,868,288.48/75,369.42
  6. Step 6: Final answer
    x = 60,088.94

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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.