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Finding the Fourth Proportional to 236,364.68, 326,185.32 and 128,935.16

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Solution

The fourth proportional to 236,364.68, 326,185.32 and 128,935.16 is: 177,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,364.68 : 326,185.32 = 128,935.16 : x
  2. Step 2: Convert to fraction form
    236,364.68/326,185.32 = 128,935.16/x
  3. Step 3: Cross multiply
    236,364.68x = 326,185.32 × 128,935.16
  4. Step 4: Simplify right side
    236,364.68x = 42,056,756,423.85
  5. Step 5: Solve for x
    x = 42,056,756,423.85/236,364.68
  6. Step 6: Final answer
    x = 177,931.65

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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.