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Finding the Fourth Proportional to 171,731.60, 257,477.40 and 101,574.80

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Solution

The fourth proportional to 171,731.60, 257,477.40 and 101,574.80 is: 152,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,731.60 : 257,477.40 = 101,574.80 : x
  2. Step 2: Convert to fraction form
    171,731.60/257,477.40 = 101,574.80/x
  3. Step 3: Cross multiply
    171,731.60x = 257,477.40 × 101,574.80
  4. Step 4: Simplify right side
    171,731.60x = 26,153,215,409.52
  5. Step 5: Solve for x
    x = 26,153,215,409.52/171,731.60
  6. Step 6: Final answer
    x = 152,291.22

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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.