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Finding the Fourth Proportional to 178,778.40, 268,088.40 and 60,417.60

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Solution

The fourth proportional to 178,778.40, 268,088.40 and 60,417.60 is: 90,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,778.40 : 268,088.40 = 60,417.60 : x
  2. Step 2: Convert to fraction form
    178,778.40/268,088.40 = 60,417.60/x
  3. Step 3: Cross multiply
    178,778.40x = 268,088.40 × 60,417.60
  4. Step 4: Simplify right side
    178,778.40x = 16,197,257,715.84
  5. Step 5: Solve for x
    x = 16,197,257,715.84/178,778.40
  6. Step 6: Final answer
    x = 90,599.63

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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.