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Finding the Fourth Proportional to 324,189.80, 486,054.30 and 146,781.80

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Solution

The fourth proportional to 324,189.80, 486,054.30 and 146,781.80 is: 220,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,189.80 : 486,054.30 = 146,781.80 : x
  2. Step 2: Convert to fraction form
    324,189.80/486,054.30 = 146,781.80/x
  3. Step 3: Cross multiply
    324,189.80x = 486,054.30 × 146,781.80
  4. Step 4: Simplify right side
    324,189.80x = 71,343,925,051.74
  5. Step 5: Solve for x
    x = 71,343,925,051.74/324,189.80
  6. Step 6: Final answer
    x = 220,068.38

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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.