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Finding the Fourth Proportional to 116,464.80, 160,718.40 and 68,720.16

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Solution

The fourth proportional to 116,464.80, 160,718.40 and 68,720.16 is: 94,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,464.80 : 160,718.40 = 68,720.16 : x
  2. Step 2: Convert to fraction form
    116,464.80/160,718.40 = 68,720.16/x
  3. Step 3: Cross multiply
    116,464.80x = 160,718.40 × 68,720.16
  4. Step 4: Simplify right side
    116,464.80x = 11,044,594,162.94
  5. Step 5: Solve for x
    x = 11,044,594,162.94/116,464.80
  6. Step 6: Final answer
    x = 94,832.04

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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.