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Finding the Fourth Proportional to 170,186.94, 255,247.46 and 64,980.90

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Solution

The fourth proportional to 170,186.94, 255,247.46 and 64,980.90 is: 97,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,186.94 : 255,247.46 = 64,980.90 : x
  2. Step 2: Convert to fraction form
    170,186.94/255,247.46 = 64,980.90/x
  3. Step 3: Cross multiply
    170,186.94x = 255,247.46 × 64,980.90
  4. Step 4: Simplify right side
    170,186.94x = 16,586,209,673.51
  5. Step 5: Solve for x
    x = 16,586,209,673.51/170,186.94
  6. Step 6: Final answer
    x = 97,458.77

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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.