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Finding the Fourth Proportional to 169,986.90, 254,969.55 and 57,666.90

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Solution

The fourth proportional to 169,986.90, 254,969.55 and 57,666.90 is: 86,496.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,986.90 : 254,969.55 = 57,666.90 : x
  2. Step 2: Convert to fraction form
    169,986.90/254,969.55 = 57,666.90/x
  3. Step 3: Cross multiply
    169,986.90x = 254,969.55 × 57,666.90
  4. Step 4: Simplify right side
    169,986.90x = 14,703,303,542.90
  5. Step 5: Solve for x
    x = 14,703,303,542.90/169,986.90
  6. Step 6: Final answer
    x = 86,496.69

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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.