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Finding the Fourth Proportional to 228,985.41, 316,037.70 and 127,043.70

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Solution

The fourth proportional to 228,985.41, 316,037.70 and 127,043.70 is: 175,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,985.41 : 316,037.70 = 127,043.70 : x
  2. Step 2: Convert to fraction form
    228,985.41/316,037.70 = 127,043.70/x
  3. Step 3: Cross multiply
    228,985.41x = 316,037.70 × 127,043.70
  4. Step 4: Simplify right side
    228,985.41x = 40,150,598,747.49
  5. Step 5: Solve for x
    x = 40,150,598,747.49/228,985.41
  6. Step 6: Final answer
    x = 175,341.30

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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.