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Finding the Fourth Proportional to 169,477.20, 254,215.80 and 151,106.40

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Solution

The fourth proportional to 169,477.20, 254,215.80 and 151,106.40 is: 226,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,477.20 : 254,215.80 = 151,106.40 : x
  2. Step 2: Convert to fraction form
    169,477.20/254,215.80 = 151,106.40/x
  3. Step 3: Cross multiply
    169,477.20x = 254,215.80 × 151,106.40
  4. Step 4: Simplify right side
    169,477.20x = 38,413,634,361.12
  5. Step 5: Solve for x
    x = 38,413,634,361.12/169,477.20
  6. Step 6: Final answer
    x = 226,659.60

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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.