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Finding the Fourth Proportional to 74,570.94, 102,884.73 and 42,300.24

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Solution

The fourth proportional to 74,570.94, 102,884.73 and 42,300.24 is: 58,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.94 : 102,884.73 = 42,300.24 : x
  2. Step 2: Convert to fraction form
    74,570.94/102,884.73 = 42,300.24/x
  3. Step 3: Cross multiply
    74,570.94x = 102,884.73 × 42,300.24
  4. Step 4: Simplify right side
    74,570.94x = 4,352,048,771.34
  5. Step 5: Solve for x
    x = 4,352,048,771.34/74,570.94
  6. Step 6: Final answer
    x = 58,361.19

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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.