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Finding the Fourth Proportional to 170,783.64, 256,155.84 and 65,528.64

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Solution

The fourth proportional to 170,783.64, 256,155.84 and 65,528.64 is: 98,285.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,783.64 : 256,155.84 = 65,528.64 : x
  2. Step 2: Convert to fraction form
    170,783.64/256,155.84 = 65,528.64/x
  3. Step 3: Cross multiply
    170,783.64x = 256,155.84 × 65,528.64
  4. Step 4: Simplify right side
    170,783.64x = 16,785,543,823.26
  5. Step 5: Solve for x
    x = 16,785,543,823.26/170,783.64
  6. Step 6: Final answer
    x = 98,285.43

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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.