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Finding the Fourth Proportional to 255,893.11, 353,018.27 and 148,400.84

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Solution

The fourth proportional to 255,893.11, 353,018.27 and 148,400.84 is: 204,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,893.11 : 353,018.27 = 148,400.84 : x
  2. Step 2: Convert to fraction form
    255,893.11/353,018.27 = 148,400.84/x
  3. Step 3: Cross multiply
    255,893.11x = 353,018.27 × 148,400.84
  4. Step 4: Simplify right side
    255,893.11x = 52,388,209,056.89
  5. Step 5: Solve for x
    x = 52,388,209,056.89/255,893.11
  6. Step 6: Final answer
    x = 204,726.93

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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.