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Finding the Fourth Proportional to 212,444.48, 318,683.10 and 54,674.48

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Solution

The fourth proportional to 212,444.48, 318,683.10 and 54,674.48 is: 82,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,444.48 : 318,683.10 = 54,674.48 : x
  2. Step 2: Convert to fraction form
    212,444.48/318,683.10 = 54,674.48/x
  3. Step 3: Cross multiply
    212,444.48x = 318,683.10 × 54,674.48
  4. Step 4: Simplify right side
    212,444.48x = 17,423,832,777.29
  5. Step 5: Solve for x
    x = 17,423,832,777.29/212,444.48
  6. Step 6: Final answer
    x = 82,015.94

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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.