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Finding the Fourth Proportional to 359,366.60, 539,097.90 and 122,649.80

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Solution

The fourth proportional to 359,366.60, 539,097.90 and 122,649.80 is: 183,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,366.60 : 539,097.90 = 122,649.80 : x
  2. Step 2: Convert to fraction form
    359,366.60/539,097.90 = 122,649.80/x
  3. Step 3: Cross multiply
    359,366.60x = 539,097.90 × 122,649.80
  4. Step 4: Simplify right side
    359,366.60x = 66,120,249,615.42
  5. Step 5: Solve for x
    x = 66,120,249,615.42/359,366.60
  6. Step 6: Final answer
    x = 183,991.08

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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.