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Finding the Fourth Proportional to 86,572.44, 119,472.54 and 53,019.48

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Solution

The fourth proportional to 86,572.44, 119,472.54 and 53,019.48 is: 73,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,572.44 : 119,472.54 = 53,019.48 : x
  2. Step 2: Convert to fraction form
    86,572.44/119,472.54 = 53,019.48/x
  3. Step 3: Cross multiply
    86,572.44x = 119,472.54 × 53,019.48
  4. Step 4: Simplify right side
    86,572.44x = 6,334,371,945.08
  5. Step 5: Solve for x
    x = 6,334,371,945.08/86,572.44
  6. Step 6: Final answer
    x = 73,168.46

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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.