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Finding the Fourth Proportional to 185,599.76, 256,127.57 and 100,716.82

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Solution

The fourth proportional to 185,599.76, 256,127.57 and 100,716.82 is: 138,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,599.76 : 256,127.57 = 100,716.82 : x
  2. Step 2: Convert to fraction form
    185,599.76/256,127.57 = 100,716.82/x
  3. Step 3: Cross multiply
    185,599.76x = 256,127.57 × 100,716.82
  4. Step 4: Simplify right side
    185,599.76x = 25,796,353,598.51
  5. Step 5: Solve for x
    x = 25,796,353,598.51/185,599.76
  6. Step 6: Final answer
    x = 138,989.16

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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.