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Finding the Fourth Proportional to 171,621.60, 257,043.60 and 101,637.60

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Solution

The fourth proportional to 171,621.60, 257,043.60 and 101,637.60 is: 152,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,621.60 : 257,043.60 = 101,637.60 : x
  2. Step 2: Convert to fraction form
    171,621.60/257,043.60 = 101,637.60/x
  3. Step 3: Cross multiply
    171,621.60x = 257,043.60 × 101,637.60
  4. Step 4: Simplify right side
    171,621.60x = 26,125,294,599.36
  5. Step 5: Solve for x
    x = 26,125,294,599.36/171,621.60
  6. Step 6: Final answer
    x = 152,226.15

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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.