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Finding the Fourth Proportional to 92,833.52, 128,113.13 and 54,586.16

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Solution

The fourth proportional to 92,833.52, 128,113.13 and 54,586.16 is: 75,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,833.52 : 128,113.13 = 54,586.16 : x
  2. Step 2: Convert to fraction form
    92,833.52/128,113.13 = 54,586.16/x
  3. Step 3: Cross multiply
    92,833.52x = 128,113.13 × 54,586.16
  4. Step 4: Simplify right side
    92,833.52x = 6,993,202,898.78
  5. Step 5: Solve for x
    x = 6,993,202,898.78/92,833.52
  6. Step 6: Final answer
    x = 75,330.58

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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.