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Finding the Fourth Proportional to 163,460.80, 225,493.64 and 141,921.25

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Solution

The fourth proportional to 163,460.80, 225,493.64 and 141,921.25 is: 195,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,460.80 : 225,493.64 = 141,921.25 : x
  2. Step 2: Convert to fraction form
    163,460.80/225,493.64 = 141,921.25/x
  3. Step 3: Cross multiply
    163,460.80x = 225,493.64 × 141,921.25
  4. Step 4: Simplify right side
    163,460.80x = 32,002,338,514.71
  5. Step 5: Solve for x
    x = 32,002,338,514.71/163,460.80
  6. Step 6: Final answer
    x = 195,779.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.