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Finding the Fourth Proportional to 119,412.72, 179,130.76 and 44,515.40

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Solution

The fourth proportional to 119,412.72, 179,130.76 and 44,515.40 is: 66,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,412.72 : 179,130.76 = 44,515.40 : x
  2. Step 2: Convert to fraction form
    119,412.72/179,130.76 = 44,515.40/x
  3. Step 3: Cross multiply
    119,412.72x = 179,130.76 × 44,515.40
  4. Step 4: Simplify right side
    119,412.72x = 7,974,077,433.70
  5. Step 5: Solve for x
    x = 7,974,077,433.70/119,412.72
  6. Step 6: Final answer
    x = 66,777.45

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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.