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Finding the Fourth Proportional to 92,485.91, 127,631.16 and 54,237.68

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Solution

The fourth proportional to 92,485.91, 127,631.16 and 54,237.68 is: 74,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,485.91 : 127,631.16 = 54,237.68 : x
  2. Step 2: Convert to fraction form
    92,485.91/127,631.16 = 54,237.68/x
  3. Step 3: Cross multiply
    92,485.91x = 127,631.16 × 54,237.68
  4. Step 4: Simplify right side
    92,485.91x = 6,922,417,266.79
  5. Step 5: Solve for x
    x = 6,922,417,266.79/92,485.91
  6. Step 6: Final answer
    x = 74,848.34

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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.