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Finding the Fourth Proportional to 213,999.53, 295,319.09 and 118,506.11

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Solution

The fourth proportional to 213,999.53, 295,319.09 and 118,506.11 is: 163,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,999.53 : 295,319.09 = 118,506.11 : x
  2. Step 2: Convert to fraction form
    213,999.53/295,319.09 = 118,506.11/x
  3. Step 3: Cross multiply
    213,999.53x = 295,319.09 × 118,506.11
  4. Step 4: Simplify right side
    213,999.53x = 34,997,115,972.11
  5. Step 5: Solve for x
    x = 34,997,115,972.11/213,999.53
  6. Step 6: Final answer
    x = 163,538.28

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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.