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Finding the Fourth Proportional to 125,576.76, 173,341.40 and 83,148.96

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Solution

The fourth proportional to 125,576.76, 173,341.40 and 83,148.96 is: 114,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,576.76 : 173,341.40 = 83,148.96 : x
  2. Step 2: Convert to fraction form
    125,576.76/173,341.40 = 83,148.96/x
  3. Step 3: Cross multiply
    125,576.76x = 173,341.40 × 83,148.96
  4. Step 4: Simplify right side
    125,576.76x = 14,413,157,134.94
  5. Step 5: Solve for x
    x = 14,413,157,134.94/125,576.76
  6. Step 6: Final answer
    x = 114,775.67

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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.