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Finding the Fourth Proportional to 228,998.88, 316,019.46 and 127,017.24

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Solution

The fourth proportional to 228,998.88, 316,019.46 and 127,017.24 is: 175,284.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,998.88 : 316,019.46 = 127,017.24 : x
  2. Step 2: Convert to fraction form
    228,998.88/316,019.46 = 127,017.24/x
  3. Step 3: Cross multiply
    228,998.88x = 316,019.46 × 127,017.24
  4. Step 4: Simplify right side
    228,998.88x = 40,139,919,595.49
  5. Step 5: Solve for x
    x = 40,139,919,595.49/228,998.88
  6. Step 6: Final answer
    x = 175,284.35

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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.