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Finding the Fourth Proportional to 255,711.66, 352,886.73 and 142,522.26

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Solution

The fourth proportional to 255,711.66, 352,886.73 and 142,522.26 is: 196,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,711.66 : 352,886.73 = 142,522.26 : x
  2. Step 2: Convert to fraction form
    255,711.66/352,886.73 = 142,522.26/x
  3. Step 3: Cross multiply
    255,711.66x = 352,886.73 × 142,522.26
  4. Step 4: Simplify right side
    255,711.66x = 50,294,214,283.61
  5. Step 5: Solve for x
    x = 50,294,214,283.61/255,711.66
  6. Step 6: Final answer
    x = 196,683.30

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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.