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Finding the Fourth Proportional to 94,378.80, 141,568.20 and 52,820.40

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Solution

The fourth proportional to 94,378.80, 141,568.20 and 52,820.40 is: 79,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,378.80 : 141,568.20 = 52,820.40 : x
  2. Step 2: Convert to fraction form
    94,378.80/141,568.20 = 52,820.40/x
  3. Step 3: Cross multiply
    94,378.80x = 141,568.20 × 52,820.40
  4. Step 4: Simplify right side
    94,378.80x = 7,477,688,951.28
  5. Step 5: Solve for x
    x = 7,477,688,951.28/94,378.80
  6. Step 6: Final answer
    x = 79,230.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.