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Finding the Fourth Proportional to 359,303.99, 538,799.52 and 103,080.03

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Solution

The fourth proportional to 359,303.99, 538,799.52 and 103,080.03 is: 154,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,303.99 : 538,799.52 = 103,080.03 : x
  2. Step 2: Convert to fraction form
    359,303.99/538,799.52 = 103,080.03/x
  3. Step 3: Cross multiply
    359,303.99x = 538,799.52 × 103,080.03
  4. Step 4: Simplify right side
    359,303.99x = 55,539,468,471.81
  5. Step 5: Solve for x
    x = 55,539,468,471.81/359,303.99
  6. Step 6: Final answer
    x = 154,575.15

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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.