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Finding the Fourth Proportional to 168,412.15, 251,385.15 and 148,483.63

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Solution

The fourth proportional to 168,412.15, 251,385.15 and 148,483.63 is: 221,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,412.15 : 251,385.15 = 148,483.63 : x
  2. Step 2: Convert to fraction form
    168,412.15/251,385.15 = 148,483.63/x
  3. Step 3: Cross multiply
    168,412.15x = 251,385.15 × 148,483.63
  4. Step 4: Simplify right side
    168,412.15x = 37,326,579,600.09
  5. Step 5: Solve for x
    x = 37,326,579,600.09/168,412.15
  6. Step 6: Final answer
    x = 221,638.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.