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Finding the Fourth Proportional to 168,782.80, 253,133.70 and 97,551.40

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Solution

The fourth proportional to 168,782.80, 253,133.70 and 97,551.40 is: 146,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,782.80 : 253,133.70 = 97,551.40 : x
  2. Step 2: Convert to fraction form
    168,782.80/253,133.70 = 97,551.40/x
  3. Step 3: Cross multiply
    168,782.80x = 253,133.70 × 97,551.40
  4. Step 4: Simplify right side
    168,782.80x = 24,693,546,822.18
  5. Step 5: Solve for x
    x = 24,693,546,822.18/168,782.80
  6. Step 6: Final answer
    x = 146,303.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.