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Finding the Fourth Proportional to 219,033.60, 328,420.80 and 114,057.60

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Solution

The fourth proportional to 219,033.60, 328,420.80 and 114,057.60 is: 171,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,033.60 : 328,420.80 = 114,057.60 : x
  2. Step 2: Convert to fraction form
    219,033.60/328,420.80 = 114,057.60/x
  3. Step 3: Cross multiply
    219,033.60x = 328,420.80 × 114,057.60
  4. Step 4: Simplify right side
    219,033.60x = 37,458,888,238.08
  5. Step 5: Solve for x
    x = 37,458,888,238.08/219,033.60
  6. Step 6: Final answer
    x = 171,018.91

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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.