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Finding the Fourth Proportional to 255,420.53, 352,480.41 and 148,052.84

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Solution

The fourth proportional to 255,420.53, 352,480.41 and 148,052.84 is: 204,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,420.53 : 352,480.41 = 148,052.84 : x
  2. Step 2: Convert to fraction form
    255,420.53/352,480.41 = 148,052.84/x
  3. Step 3: Cross multiply
    255,420.53x = 352,480.41 × 148,052.84
  4. Step 4: Simplify right side
    255,420.53x = 52,185,725,442.26
  5. Step 5: Solve for x
    x = 52,185,725,442.26/255,420.53
  6. Step 6: Final answer
    x = 204,312.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.