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Finding the Fourth Proportional to 92,479.19, 127,621.47 and 51,643.12

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Solution

The fourth proportional to 92,479.19, 127,621.47 and 51,643.12 is: 71,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,479.19 : 127,621.47 = 51,643.12 : x
  2. Step 2: Convert to fraction form
    92,479.19/127,621.47 = 51,643.12/x
  3. Step 3: Cross multiply
    92,479.19x = 127,621.47 × 51,643.12
  4. Step 4: Simplify right side
    92,479.19x = 6,590,771,003.68
  5. Step 5: Solve for x
    x = 6,590,771,003.68/92,479.19
  6. Step 6: Final answer
    x = 71,267.61

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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.