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Finding the Fourth Proportional to 146,643.40, 219,965.10 and 46,810.90

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Solution

The fourth proportional to 146,643.40, 219,965.10 and 46,810.90 is: 70,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,643.40 : 219,965.10 = 46,810.90 : x
  2. Step 2: Convert to fraction form
    146,643.40/219,965.10 = 46,810.90/x
  3. Step 3: Cross multiply
    146,643.40x = 219,965.10 × 46,810.90
  4. Step 4: Simplify right side
    146,643.40x = 10,296,764,299.59
  5. Step 5: Solve for x
    x = 10,296,764,299.59/146,643.40
  6. Step 6: Final answer
    x = 70,216.35

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Similar ratio
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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.