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Finding the Fourth Proportional to 142,758.67, 214,121.45 and 37,585.84

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Solution

The fourth proportional to 142,758.67, 214,121.45 and 37,585.84 is: 56,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758.67 : 214,121.45 = 37,585.84 : x
  2. Step 2: Convert to fraction form
    142,758.67/214,121.45 = 37,585.84/x
  3. Step 3: Cross multiply
    142,758.67x = 214,121.45 × 37,585.84
  4. Step 4: Simplify right side
    142,758.67x = 8,047,934,372.34
  5. Step 5: Solve for x
    x = 8,047,934,372.34/142,758.67
  6. Step 6: Final answer
    x = 56,374.40

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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.