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Finding the Fourth Proportional to 92,679.66, 127,888.47 and 56,871.18

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Solution

The fourth proportional to 92,679.66, 127,888.47 and 56,871.18 is: 78,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679.66 : 127,888.47 = 56,871.18 : x
  2. Step 2: Convert to fraction form
    92,679.66/127,888.47 = 56,871.18/x
  3. Step 3: Cross multiply
    92,679.66x = 127,888.47 × 56,871.18
  4. Step 4: Simplify right side
    92,679.66x = 7,273,168,197.29
  5. Step 5: Solve for x
    x = 7,273,168,197.29/92,679.66
  6. Step 6: Final answer
    x = 78,476.42

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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.