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Finding the Fourth Proportional to 134,042.70, 185,050.76 and 103,348.76

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Solution

The fourth proportional to 134,042.70, 185,050.76 and 103,348.76 is: 142,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,042.70 : 185,050.76 = 103,348.76 : x
  2. Step 2: Convert to fraction form
    134,042.70/185,050.76 = 103,348.76/x
  3. Step 3: Cross multiply
    134,042.70x = 185,050.76 × 103,348.76
  4. Step 4: Simplify right side
    134,042.70x = 19,124,766,583.06
  5. Step 5: Solve for x
    x = 19,124,766,583.06/134,042.70
  6. Step 6: Final answer
    x = 142,676.67

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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.