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Finding the Fourth Proportional to 116,394.30, 160,612.17 and 65,398.93

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Solution

The fourth proportional to 116,394.30, 160,612.17 and 65,398.93 is: 90,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,394.30 : 160,612.17 = 65,398.93 : x
  2. Step 2: Convert to fraction form
    116,394.30/160,612.17 = 65,398.93/x
  3. Step 3: Cross multiply
    116,394.30x = 160,612.17 × 65,398.93
  4. Step 4: Simplify right side
    116,394.30x = 10,503,863,416.20
  5. Step 5: Solve for x
    x = 10,503,863,416.20/116,394.30
  6. Step 6: Final answer
    x = 90,243.80

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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.