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Finding the Fourth Proportional to 185,613.84, 256,131.72 and 105,037.20

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Solution

The fourth proportional to 185,613.84, 256,131.72 and 105,037.20 is: 144,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.84 : 256,131.72 = 105,037.20 : x
  2. Step 2: Convert to fraction form
    185,613.84/256,131.72 = 105,037.20/x
  3. Step 3: Cross multiply
    185,613.84x = 256,131.72 × 105,037.20
  4. Step 4: Simplify right side
    185,613.84x = 26,903,358,699.98
  5. Step 5: Solve for x
    x = 26,903,358,699.98/185,613.84
  6. Step 6: Final answer
    x = 144,942.63

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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.