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Finding the Fourth Proportional to 185,955.74, 256,617.64 and 101,072.80

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Solution

The fourth proportional to 185,955.74, 256,617.64 and 101,072.80 is: 139,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,955.74 : 256,617.64 = 101,072.80 : x
  2. Step 2: Convert to fraction form
    185,955.74/256,617.64 = 101,072.80/x
  3. Step 3: Cross multiply
    185,955.74x = 256,617.64 × 101,072.80
  4. Step 4: Simplify right side
    185,955.74x = 25,937,063,404.19
  5. Step 5: Solve for x
    x = 25,937,063,404.19/185,955.74
  6. Step 6: Final answer
    x = 139,479.77

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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.