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Finding the Fourth Proportional to 96,420.54, 133,065.27 and 53,976.54

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Solution

The fourth proportional to 96,420.54, 133,065.27 and 53,976.54 is: 74,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,420.54 : 133,065.27 = 53,976.54 : x
  2. Step 2: Convert to fraction form
    96,420.54/133,065.27 = 53,976.54/x
  3. Step 3: Cross multiply
    96,420.54x = 133,065.27 × 53,976.54
  4. Step 4: Simplify right side
    96,420.54x = 7,182,402,868.77
  5. Step 5: Solve for x
    x = 7,182,402,868.77/96,420.54
  6. Step 6: Final answer
    x = 74,490.38

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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.