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Finding the Fourth Proportional to 216,878.30, 325,265.06 and 83,673.60

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Solution

The fourth proportional to 216,878.30, 325,265.06 and 83,673.60 is: 125,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,878.30 : 325,265.06 = 83,673.60 : x
  2. Step 2: Convert to fraction form
    216,878.30/325,265.06 = 83,673.60/x
  3. Step 3: Cross multiply
    216,878.30x = 325,265.06 × 83,673.60
  4. Step 4: Simplify right side
    216,878.30x = 27,216,098,106.05
  5. Step 5: Solve for x
    x = 27,216,098,106.05/216,878.30
  6. Step 6: Final answer
    x = 125,490.18

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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.