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Finding the Fourth Proportional to 216,880.40, 325,223.40 and 83,716.40

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Solution

The fourth proportional to 216,880.40, 325,223.40 and 83,716.40 is: 125,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,880.40 : 325,223.40 = 83,716.40 : x
  2. Step 2: Convert to fraction form
    216,880.40/325,223.40 = 83,716.40/x
  3. Step 3: Cross multiply
    216,880.40x = 325,223.40 × 83,716.40
  4. Step 4: Simplify right side
    216,880.40x = 27,226,532,243.76
  5. Step 5: Solve for x
    x = 27,226,532,243.76/216,880.40
  6. Step 6: Final answer
    x = 125,537.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.