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Finding the Fourth Proportional to 131,673.60, 197,541.60 and 42,927.60

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Solution

The fourth proportional to 131,673.60, 197,541.60 and 42,927.60 is: 64,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,673.60 : 197,541.60 = 42,927.60 : x
  2. Step 2: Convert to fraction form
    131,673.60/197,541.60 = 42,927.60/x
  3. Step 3: Cross multiply
    131,673.60x = 197,541.60 × 42,927.60
  4. Step 4: Simplify right side
    131,673.60x = 8,479,986,788.16
  5. Step 5: Solve for x
    x = 8,479,986,788.16/131,673.60
  6. Step 6: Final answer
    x = 64,401.57

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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.