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Finding the Fourth Proportional to 359,416.64, 539,228.64 and 149,015.36

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Solution

The fourth proportional to 359,416.64, 539,228.64 and 149,015.36 is: 223,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,416.64 : 539,228.64 = 149,015.36 : x
  2. Step 2: Convert to fraction form
    359,416.64/539,228.64 = 149,015.36/x
  3. Step 3: Cross multiply
    359,416.64x = 539,228.64 × 149,015.36
  4. Step 4: Simplify right side
    359,416.64x = 80,353,349,911.91
  5. Step 5: Solve for x
    x = 80,353,349,911.91/359,416.64
  6. Step 6: Final answer
    x = 223,566.03

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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.