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Finding the Fourth Proportional to 286,084.60, 429,126.90 and 166,346.35

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Solution

The fourth proportional to 286,084.60, 429,126.90 and 166,346.35 is: 249,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,084.60 : 429,126.90 = 166,346.35 : x
  2. Step 2: Convert to fraction form
    286,084.60/429,126.90 = 166,346.35/x
  3. Step 3: Cross multiply
    286,084.60x = 429,126.90 × 166,346.35
  4. Step 4: Simplify right side
    286,084.60x = 71,383,693,501.82
  5. Step 5: Solve for x
    x = 71,383,693,501.82/286,084.60
  6. Step 6: Final answer
    x = 249,519.53

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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.