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Finding the Fourth Proportional to 213,373.76, 294,430.56 and 117,874.72

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Solution

The fourth proportional to 213,373.76, 294,430.56 and 117,874.72 is: 162,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,373.76 : 294,430.56 = 117,874.72 : x
  2. Step 2: Convert to fraction form
    213,373.76/294,430.56 = 117,874.72/x
  3. Step 3: Cross multiply
    213,373.76x = 294,430.56 × 117,874.72
  4. Step 4: Simplify right side
    213,373.76x = 34,705,919,819.44
  5. Step 5: Solve for x
    x = 34,705,919,819.44/213,373.76
  6. Step 6: Final answer
    x = 162,653.18

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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.