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Finding the Fourth Proportional to 219,493.92, 302,907.84 and 124,004.64

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Solution

The fourth proportional to 219,493.92, 302,907.84 and 124,004.64 is: 171,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,493.92 : 302,907.84 = 124,004.64 : x
  2. Step 2: Convert to fraction form
    219,493.92/302,907.84 = 124,004.64/x
  3. Step 3: Cross multiply
    219,493.92x = 302,907.84 × 124,004.64
  4. Step 4: Simplify right side
    219,493.92x = 37,561,977,652.38
  5. Step 5: Solve for x
    x = 37,561,977,652.38/219,493.92
  6. Step 6: Final answer
    x = 171,129.92

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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.