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Finding the Fourth Proportional to 114,574.40, 171,861.60 and 31,476.80

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Solution

The fourth proportional to 114,574.40, 171,861.60 and 31,476.80 is: 47,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,574.40 : 171,861.60 = 31,476.80 : x
  2. Step 2: Convert to fraction form
    114,574.40/171,861.60 = 31,476.80/x
  3. Step 3: Cross multiply
    114,574.40x = 171,861.60 × 31,476.80
  4. Step 4: Simplify right side
    114,574.40x = 5,409,653,210.88
  5. Step 5: Solve for x
    x = 5,409,653,210.88/114,574.40
  6. Step 6: Final answer
    x = 47,215.20

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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.