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Finding the Fourth Proportional to 119,124.16, 178,669.60 and 40,228.16

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Solution

The fourth proportional to 119,124.16, 178,669.60 and 40,228.16 is: 60,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,124.16 : 178,669.60 = 40,228.16 : x
  2. Step 2: Convert to fraction form
    119,124.16/178,669.60 = 40,228.16/x
  3. Step 3: Cross multiply
    119,124.16x = 178,669.60 × 40,228.16
  4. Step 4: Simplify right side
    119,124.16x = 7,187,549,255.94
  5. Step 5: Solve for x
    x = 7,187,549,255.94/119,124.16
  6. Step 6: Final answer
    x = 60,336.62

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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.