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Finding the Fourth Proportional to 72,956.48, 100,673.88 and 41,133.20

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Solution

The fourth proportional to 72,956.48, 100,673.88 and 41,133.20 is: 56,760.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,956.48 : 100,673.88 = 41,133.20 : x
  2. Step 2: Convert to fraction form
    72,956.48/100,673.88 = 41,133.20/x
  3. Step 3: Cross multiply
    72,956.48x = 100,673.88 × 41,133.20
  4. Step 4: Simplify right side
    72,956.48x = 4,141,038,337.45
  5. Step 5: Solve for x
    x = 4,141,038,337.45/72,956.48
  6. Step 6: Final answer
    x = 56,760.39

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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.