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Finding the Fourth Proportional to 74,061.62, 102,205.12 and 40,527.62

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Solution

The fourth proportional to 74,061.62, 102,205.12 and 40,527.62 is: 55,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,061.62 : 102,205.12 = 40,527.62 : x
  2. Step 2: Convert to fraction form
    74,061.62/102,205.12 = 40,527.62/x
  3. Step 3: Cross multiply
    74,061.62x = 102,205.12 × 40,527.62
  4. Step 4: Simplify right side
    74,061.62x = 4,142,130,265.41
  5. Step 5: Solve for x
    x = 4,142,130,265.41/74,061.62
  6. Step 6: Final answer
    x = 55,928.16

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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.