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Finding the Fourth Proportional to 255,248.15, 352,244.70 and 142,070.90

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Solution

The fourth proportional to 255,248.15, 352,244.70 and 142,070.90 is: 196,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,248.15 : 352,244.70 = 142,070.90 : x
  2. Step 2: Convert to fraction form
    255,248.15/352,244.70 = 142,070.90/x
  3. Step 3: Cross multiply
    255,248.15x = 352,244.70 × 142,070.90
  4. Step 4: Simplify right side
    255,248.15x = 50,043,719,788.01
  5. Step 5: Solve for x
    x = 50,043,719,788.01/255,248.15
  6. Step 6: Final answer
    x = 196,059.09

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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.