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Finding the Fourth Proportional to 213,165.56, 294,170.54 and 117,670.20

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Solution

The fourth proportional to 213,165.56, 294,170.54 and 117,670.20 is: 162,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,165.56 : 294,170.54 = 117,670.20 : x
  2. Step 2: Convert to fraction form
    213,165.56/294,170.54 = 117,670.20/x
  3. Step 3: Cross multiply
    213,165.56x = 294,170.54 × 117,670.20
  4. Step 4: Simplify right side
    213,165.56x = 34,615,106,275.91
  5. Step 5: Solve for x
    x = 34,615,106,275.91/213,165.56
  6. Step 6: Final answer
    x = 162,386.02

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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.