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Finding the Fourth Proportional to 256,762.62, 354,358.89 and 147,870.53

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Solution

The fourth proportional to 256,762.62, 354,358.89 and 147,870.53 is: 204,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,762.62 : 354,358.89 = 147,870.53 : x
  2. Step 2: Convert to fraction form
    256,762.62/354,358.89 = 147,870.53/x
  3. Step 3: Cross multiply
    256,762.62x = 354,358.89 × 147,870.53
  4. Step 4: Simplify right side
    256,762.62x = 52,399,235,102.72
  5. Step 5: Solve for x
    x = 52,399,235,102.72/256,762.62
  6. Step 6: Final answer
    x = 204,076.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.