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Finding the Fourth Proportional to 189,582.93, 261,676.71 and 117,920.34

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Solution

The fourth proportional to 189,582.93, 261,676.71 and 117,920.34 is: 162,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,582.93 : 261,676.71 = 117,920.34 : x
  2. Step 2: Convert to fraction form
    189,582.93/261,676.71 = 117,920.34/x
  3. Step 3: Cross multiply
    189,582.93x = 261,676.71 × 117,920.34
  4. Step 4: Simplify right side
    189,582.93x = 30,857,006,613.28
  5. Step 5: Solve for x
    x = 30,857,006,613.28/189,582.93
  6. Step 6: Final answer
    x = 162,762.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.