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Finding the Fourth Proportional to 147,113.70, 220,703.34 and 53,619.45

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Solution

The fourth proportional to 147,113.70, 220,703.34 and 53,619.45 is: 80,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,113.70 : 220,703.34 = 53,619.45 : x
  2. Step 2: Convert to fraction form
    147,113.70/220,703.34 = 53,619.45/x
  3. Step 3: Cross multiply
    147,113.70x = 220,703.34 × 53,619.45
  4. Step 4: Simplify right side
    147,113.70x = 11,833,991,703.96
  5. Step 5: Solve for x
    x = 11,833,991,703.96/147,113.70
  6. Step 6: Final answer
    x = 80,441.13

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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.