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Finding the Fourth Proportional to 168,777.80, 253,166.70 and 166,153.40

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Solution

The fourth proportional to 168,777.80, 253,166.70 and 166,153.40 is: 249,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,777.80 : 253,166.70 = 166,153.40 : x
  2. Step 2: Convert to fraction form
    168,777.80/253,166.70 = 166,153.40/x
  3. Step 3: Cross multiply
    168,777.80x = 253,166.70 × 166,153.40
  4. Step 4: Simplify right side
    168,777.80x = 42,064,507,971.78
  5. Step 5: Solve for x
    x = 42,064,507,971.78/168,777.80
  6. Step 6: Final answer
    x = 249,230.10

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1.5x scale

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.