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Finding the Fourth Proportional to 359,303.60, 539,003.40 and 122,586.80

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Solution

The fourth proportional to 359,303.60, 539,003.40 and 122,586.80 is: 183,896.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,303.60 : 539,003.40 = 122,586.80 : x
  2. Step 2: Convert to fraction form
    359,303.60/539,003.40 = 122,586.80/x
  3. Step 3: Cross multiply
    359,303.60x = 539,003.40 × 122,586.80
  4. Step 4: Simplify right side
    359,303.60x = 66,074,701,995.12
  5. Step 5: Solve for x
    x = 66,074,701,995.12/359,303.60
  6. Step 6: Final answer
    x = 183,896.58

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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.