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Finding the Fourth Proportional to 469,389.81, 703,803.51 and 149,403.45

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Solution

The fourth proportional to 469,389.81, 703,803.51 and 149,403.45 is: 224,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,389.81 : 703,803.51 = 149,403.45 : x
  2. Step 2: Convert to fraction form
    469,389.81/703,803.51 = 149,403.45/x
  3. Step 3: Cross multiply
    469,389.81x = 703,803.51 × 149,403.45
  4. Step 4: Simplify right side
    469,389.81x = 105,150,672,516.11
  5. Step 5: Solve for x
    x = 105,150,672,516.11/469,389.81
  6. Step 6: Final answer
    x = 224,015.67

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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.