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Finding the Fourth Proportional to 146,306.70, 219,328.65 and 57,620.70

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Solution

The fourth proportional to 146,306.70, 219,328.65 and 57,620.70 is: 86,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,306.70 : 219,328.65 = 57,620.70 : x
  2. Step 2: Convert to fraction form
    146,306.70/219,328.65 = 57,620.70/x
  3. Step 3: Cross multiply
    146,306.70x = 219,328.65 × 57,620.70
  4. Step 4: Simplify right side
    146,306.70x = 12,637,870,343.06
  5. Step 5: Solve for x
    x = 12,637,870,343.06/146,306.70
  6. Step 6: Final answer
    x = 86,379.30

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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.