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Finding the Fourth Proportional to 76,300.40, 114,450.60 and 23,715.20

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Solution

The fourth proportional to 76,300.40, 114,450.60 and 23,715.20 is: 35,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,300.40 : 114,450.60 = 23,715.20 : x
  2. Step 2: Convert to fraction form
    76,300.40/114,450.60 = 23,715.20/x
  3. Step 3: Cross multiply
    76,300.40x = 114,450.60 × 23,715.20
  4. Step 4: Simplify right side
    76,300.40x = 2,714,218,869.12
  5. Step 5: Solve for x
    x = 2,714,218,869.12/76,300.40
  6. Step 6: Final answer
    x = 35,572.80

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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.