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Finding the Fourth Proportional to 213,615.92, 294,791.94 and 118,129.10

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Solution

The fourth proportional to 213,615.92, 294,791.94 and 118,129.10 is: 163,019.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,615.92 : 294,791.94 = 118,129.10 : x
  2. Step 2: Convert to fraction form
    213,615.92/294,791.94 = 118,129.10/x
  3. Step 3: Cross multiply
    213,615.92x = 294,791.94 × 118,129.10
  4. Step 4: Simplify right side
    213,615.92x = 34,823,506,559.45
  5. Step 5: Solve for x
    x = 34,823,506,559.45/213,615.92
  6. Step 6: Final answer
    x = 163,019.25

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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.