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Finding the Fourth Proportional to 72,592.97, 100,160.77 and 42,361.03

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Solution

The fourth proportional to 72,592.97, 100,160.77 and 42,361.03 is: 58,448.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.97 : 100,160.77 = 42,361.03 : x
  2. Step 2: Convert to fraction form
    72,592.97/100,160.77 = 42,361.03/x
  3. Step 3: Cross multiply
    72,592.97x = 100,160.77 × 42,361.03
  4. Step 4: Simplify right side
    72,592.97x = 4,242,913,527.29
  5. Step 5: Solve for x
    x = 4,242,913,527.29/72,592.97
  6. Step 6: Final answer
    x = 58,448.00

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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.