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Finding the Fourth Proportional to 228,993.75, 316,011.51 and 127,015.83

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Solution

The fourth proportional to 228,993.75, 316,011.51 and 127,015.83 is: 175,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,993.75 : 316,011.51 = 127,015.83 : x
  2. Step 2: Convert to fraction form
    228,993.75/316,011.51 = 127,015.83/x
  3. Step 3: Cross multiply
    228,993.75x = 316,011.51 × 127,015.83
  4. Step 4: Simplify right side
    228,993.75x = 40,138,464,232.20
  5. Step 5: Solve for x
    x = 40,138,464,232.20/228,993.75
  6. Step 6: Final answer
    x = 175,281.92

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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.