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Finding the Fourth Proportional to 219,588.90, 303,030.21 and 118,986.90

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Solution

The fourth proportional to 219,588.90, 303,030.21 and 118,986.90 is: 164,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,588.90 : 303,030.21 = 118,986.90 : x
  2. Step 2: Convert to fraction form
    219,588.90/303,030.21 = 118,986.90/x
  3. Step 3: Cross multiply
    219,588.90x = 303,030.21 × 118,986.90
  4. Step 4: Simplify right side
    219,588.90x = 36,056,625,294.25
  5. Step 5: Solve for x
    x = 36,056,625,294.25/219,588.90
  6. Step 6: Final answer
    x = 164,200.58

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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.