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Finding the Fourth Proportional to 213,683.83, 294,863.87 and 118,188.48

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Solution

The fourth proportional to 213,683.83, 294,863.87 and 118,188.48 is: 163,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,683.83 : 294,863.87 = 118,188.48 : x
  2. Step 2: Convert to fraction form
    213,683.83/294,863.87 = 118,188.48/x
  3. Step 3: Cross multiply
    213,683.83x = 294,863.87 × 118,188.48
  4. Step 4: Simplify right side
    213,683.83x = 34,849,510,536.96
  5. Step 5: Solve for x
    x = 34,849,510,536.96/213,683.83
  6. Step 6: Final answer
    x = 163,089.13

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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.