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Finding the Fourth Proportional to 186,105.60, 279,849.60 and 155,692.80

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Solution

The fourth proportional to 186,105.60, 279,849.60 and 155,692.80 is: 234,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,105.60 : 279,849.60 = 155,692.80 : x
  2. Step 2: Convert to fraction form
    186,105.60/279,849.60 = 155,692.80/x
  3. Step 3: Cross multiply
    186,105.60x = 279,849.60 × 155,692.80
  4. Step 4: Simplify right side
    186,105.60x = 43,570,567,802.88
  5. Step 5: Solve for x
    x = 43,570,567,802.88/186,105.60
  6. Step 6: Final answer
    x = 234,117.45

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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.