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Finding the Fourth Proportional to 312,412.76, 468,522.17 and 112,707.12

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Solution

The fourth proportional to 312,412.76, 468,522.17 and 112,707.12 is: 169,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,412.76 : 468,522.17 = 112,707.12 : x
  2. Step 2: Convert to fraction form
    312,412.76/468,522.17 = 112,707.12/x
  3. Step 3: Cross multiply
    312,412.76x = 468,522.17 × 112,707.12
  4. Step 4: Simplify right side
    312,412.76x = 52,805,783,873.31
  5. Step 5: Solve for x
    x = 52,805,783,873.31/312,412.76
  6. Step 6: Final answer
    x = 169,025.70

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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.