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Finding the Fourth Proportional to 299,673.60, 448,927.20 and 166,315.20

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Solution

The fourth proportional to 299,673.60, 448,927.20 and 166,315.20 is: 249,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,673.60 : 448,927.20 = 166,315.20 : x
  2. Step 2: Convert to fraction form
    299,673.60/448,927.20 = 166,315.20/x
  3. Step 3: Cross multiply
    299,673.60x = 448,927.20 × 166,315.20
  4. Step 4: Simplify right side
    299,673.60x = 74,663,417,053.44
  5. Step 5: Solve for x
    x = 74,663,417,053.44/299,673.60
  6. Step 6: Final answer
    x = 249,149.13

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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.