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Finding the Fourth Proportional to 255,376.32, 382,931.46 and 95,320.63

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Solution

The fourth proportional to 255,376.32, 382,931.46 and 95,320.63 is: 142,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,376.32 : 382,931.46 = 95,320.63 : x
  2. Step 2: Convert to fraction form
    255,376.32/382,931.46 = 95,320.63/x
  3. Step 3: Cross multiply
    255,376.32x = 382,931.46 × 95,320.63
  4. Step 4: Simplify right side
    255,376.32x = 36,501,268,850.14
  5. Step 5: Solve for x
    x = 36,501,268,850.14/255,376.32
  6. Step 6: Final answer
    x = 142,931.30

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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.