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Finding the Fourth Proportional to 166,667.60, 250,001.40 and 42,008.60

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Solution

The fourth proportional to 166,667.60, 250,001.40 and 42,008.60 is: 63,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,667.60 : 250,001.40 = 42,008.60 : x
  2. Step 2: Convert to fraction form
    166,667.60/250,001.40 = 42,008.60/x
  3. Step 3: Cross multiply
    166,667.60x = 250,001.40 × 42,008.60
  4. Step 4: Simplify right side
    166,667.60x = 10,502,208,812.04
  5. Step 5: Solve for x
    x = 10,502,208,812.04/166,667.60
  6. Step 6: Final answer
    x = 63,012.90

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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.