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Finding the Fourth Proportional to 448,670.39, 672,860.01 and 149,070.53

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Solution

The fourth proportional to 448,670.39, 672,860.01 and 149,070.53 is: 223,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,670.39 : 672,860.01 = 149,070.53 : x
  2. Step 2: Convert to fraction form
    448,670.39/672,860.01 = 149,070.53/x
  3. Step 3: Cross multiply
    448,670.39x = 672,860.01 × 149,070.53
  4. Step 4: Simplify right side
    448,670.39x = 100,303,596,762.83
  5. Step 5: Solve for x
    x = 100,303,596,762.83/448,670.39
  6. Step 6: Final answer
    x = 223,557.42

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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.