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Finding the Fourth Proportional to 116,640.84, 160,924.14 and 65,643.24

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Solution

The fourth proportional to 116,640.84, 160,924.14 and 65,643.24 is: 90,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,640.84 : 160,924.14 = 65,643.24 : x
  2. Step 2: Convert to fraction form
    116,640.84/160,924.14 = 65,643.24/x
  3. Step 3: Cross multiply
    116,640.84x = 160,924.14 × 65,643.24
  4. Step 4: Simplify right side
    116,640.84x = 10,563,581,943.81
  5. Step 5: Solve for x
    x = 10,563,581,943.81/116,640.84
  6. Step 6: Final answer
    x = 90,565.04

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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.