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Finding the Fourth Proportional to 223,613.51, 335,186.93 and 90,585.59

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Solution

The fourth proportional to 223,613.51, 335,186.93 and 90,585.59 is: 135,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,613.51 : 335,186.93 = 90,585.59 : x
  2. Step 2: Convert to fraction form
    223,613.51/335,186.93 = 90,585.59/x
  3. Step 3: Cross multiply
    223,613.51x = 335,186.93 × 90,585.59
  4. Step 4: Simplify right side
    223,613.51x = 30,363,105,814.34
  5. Step 5: Solve for x
    x = 30,363,105,814.34/223,613.51
  6. Step 6: Final answer
    x = 135,783.86

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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.