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Finding the Fourth Proportional to 73,045.24, 100,770.42 and 42,815.24

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Solution

The fourth proportional to 73,045.24, 100,770.42 and 42,815.24 is: 59,066.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,045.24 : 100,770.42 = 42,815.24 : x
  2. Step 2: Convert to fraction form
    73,045.24/100,770.42 = 42,815.24/x
  3. Step 3: Cross multiply
    73,045.24x = 100,770.42 × 42,815.24
  4. Step 4: Simplify right side
    73,045.24x = 4,314,509,717.20
  5. Step 5: Solve for x
    x = 4,314,509,717.20/73,045.24
  6. Step 6: Final answer
    x = 59,066.27

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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.