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Finding the Fourth Proportional to 116,615.28, 160,937.23 and 65,632.90

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Solution

The fourth proportional to 116,615.28, 160,937.23 and 65,632.90 is: 90,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,615.28 : 160,937.23 = 65,632.90 : x
  2. Step 2: Convert to fraction form
    116,615.28/160,937.23 = 65,632.90/x
  3. Step 3: Cross multiply
    116,615.28x = 160,937.23 × 65,632.90
  4. Step 4: Simplify right side
    116,615.28x = 10,562,776,302.31
  5. Step 5: Solve for x
    x = 10,562,776,302.31/116,615.28
  6. Step 6: Final answer
    x = 90,577.98

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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.