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Finding the Fourth Proportional to 116,514.76, 160,804.02 and 66,221.32

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Solution

The fourth proportional to 116,514.76, 160,804.02 and 66,221.32 is: 91,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,514.76 : 160,804.02 = 66,221.32 : x
  2. Step 2: Convert to fraction form
    116,514.76/160,804.02 = 66,221.32/x
  3. Step 3: Cross multiply
    116,514.76x = 160,804.02 × 66,221.32
  4. Step 4: Simplify right side
    116,514.76x = 10,648,654,465.71
  5. Step 5: Solve for x
    x = 10,648,654,465.71/116,514.76
  6. Step 6: Final answer
    x = 91,393.18

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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.