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Finding the Fourth Proportional to 170,996.10, 235,852.20 and 120,020.16

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Solution

The fourth proportional to 170,996.10, 235,852.20 and 120,020.16 is: 165,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,996.10 : 235,852.20 = 120,020.16 : x
  2. Step 2: Convert to fraction form
    170,996.10/235,852.20 = 120,020.16/x
  3. Step 3: Cross multiply
    170,996.10x = 235,852.20 × 120,020.16
  4. Step 4: Simplify right side
    170,996.10x = 28,307,018,780.35
  5. Step 5: Solve for x
    x = 28,307,018,780.35/170,996.10
  6. Step 6: Final answer
    x = 165,541.90

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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.