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Finding the Fourth Proportional to 116,596.60, 160,899.80 and 65,612.16

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Solution

The fourth proportional to 116,596.60, 160,899.80 and 65,612.16 is: 90,542.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,596.60 : 160,899.80 = 65,612.16 : x
  2. Step 2: Convert to fraction form
    116,596.60/160,899.80 = 65,612.16/x
  3. Step 3: Cross multiply
    116,596.60x = 160,899.80 × 65,612.16
  4. Step 4: Simplify right side
    116,596.60x = 10,556,983,421.57
  5. Step 5: Solve for x
    x = 10,556,983,421.57/116,596.60
  6. Step 6: Final answer
    x = 90,542.81

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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.