Home / 354,501.40-531,752.10-105,183.40

Finding the Fourth Proportional to 354,501.40, 531,752.10 and 105,183.40

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Solution

The fourth proportional to 354,501.40, 531,752.10 and 105,183.40 is: 157,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,501.40 : 531,752.10 = 105,183.40 : x
  2. Step 2: Convert to fraction form
    354,501.40/531,752.10 = 105,183.40/x
  3. Step 3: Cross multiply
    354,501.40x = 531,752.10 × 105,183.40
  4. Step 4: Simplify right side
    354,501.40x = 55,931,493,835.14
  5. Step 5: Solve for x
    x = 55,931,493,835.14/354,501.40
  6. Step 6: Final answer
    x = 157,775.10

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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.