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Finding the Fourth Proportional to 102,341.70, 153,325.51 and 74,191.97

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Solution

The fourth proportional to 102,341.70, 153,325.51 and 74,191.97 is: 111,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,341.70 : 153,325.51 = 74,191.97 : x
  2. Step 2: Convert to fraction form
    102,341.70/153,325.51 = 74,191.97/x
  3. Step 3: Cross multiply
    102,341.70x = 153,325.51 × 74,191.97
  4. Step 4: Simplify right side
    102,341.70x = 11,375,521,835.99
  5. Step 5: Solve for x
    x = 11,375,521,835.99/102,341.70
  6. Step 6: Final answer
    x = 111,152.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.