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Finding the Fourth Proportional to 219,302.30, 328,698.30 and 100,985.60

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Solution

The fourth proportional to 219,302.30, 328,698.30 and 100,985.60 is: 151,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,302.30 : 328,698.30 = 100,985.60 : x
  2. Step 2: Convert to fraction form
    219,302.30/328,698.30 = 100,985.60/x
  3. Step 3: Cross multiply
    219,302.30x = 328,698.30 × 100,985.60
  4. Step 4: Simplify right side
    219,302.30x = 33,193,795,044.48
  5. Step 5: Solve for x
    x = 33,193,795,044.48/219,302.30
  6. Step 6: Final answer
    x = 151,360.91

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1.5x scale

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.