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Finding the Fourth Proportional to 178,120.80, 245,806.20 and 97,553.34

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Solution

The fourth proportional to 178,120.80, 245,806.20 and 97,553.34 is: 134,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,120.80 : 245,806.20 = 97,553.34 : x
  2. Step 2: Convert to fraction form
    178,120.80/245,806.20 = 97,553.34/x
  3. Step 3: Cross multiply
    178,120.80x = 245,806.20 × 97,553.34
  4. Step 4: Simplify right side
    178,120.80x = 23,979,215,802.71
  5. Step 5: Solve for x
    x = 23,979,215,802.71/178,120.80
  6. Step 6: Final answer
    x = 134,623.33

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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.