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Finding the Fourth Proportional to 316,319.80, 473,903.70 and 149,740.60

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Solution

The fourth proportional to 316,319.80, 473,903.70 and 149,740.60 is: 224,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,319.80 : 473,903.70 = 149,740.60 : x
  2. Step 2: Convert to fraction form
    316,319.80/473,903.70 = 149,740.60/x
  3. Step 3: Cross multiply
    316,319.80x = 473,903.70 × 149,740.60
  4. Step 4: Simplify right side
    316,319.80x = 70,962,624,380.22
  5. Step 5: Solve for x
    x = 70,962,624,380.22/316,319.80
  6. Step 6: Final answer
    x = 224,338.23

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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.