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Finding the Fourth Proportional to 171,056.50, 256,595.30 and 65,875.56

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Solution

The fourth proportional to 171,056.50, 256,595.30 and 65,875.56 is: 98,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,056.50 : 256,595.30 = 65,875.56 : x
  2. Step 2: Convert to fraction form
    171,056.50/256,595.30 = 65,875.56/x
  3. Step 3: Cross multiply
    171,056.50x = 256,595.30 × 65,875.56
  4. Step 4: Simplify right side
    171,056.50x = 16,903,359,080.87
  5. Step 5: Solve for x
    x = 16,903,359,080.87/171,056.50
  6. Step 6: Final answer
    x = 98,817.40

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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.