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Finding the Fourth Proportional to 116,347.65, 160,563.56 and 65,369.45

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Solution

The fourth proportional to 116,347.65, 160,563.56 and 65,369.45 is: 90,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,347.65 : 160,563.56 = 65,369.45 : x
  2. Step 2: Convert to fraction form
    116,347.65/160,563.56 = 65,369.45/x
  3. Step 3: Cross multiply
    116,347.65x = 160,563.56 × 65,369.45
  4. Step 4: Simplify right side
    116,347.65x = 10,495,950,477.58
  5. Step 5: Solve for x
    x = 10,495,950,477.58/116,347.65
  6. Step 6: Final answer
    x = 90,211.97

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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.