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Finding the Fourth Proportional to 96,645.61, 133,377.60 and 54,206.88

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Solution

The fourth proportional to 96,645.61, 133,377.60 and 54,206.88 is: 74,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,645.61 : 133,377.60 = 54,206.88 : x
  2. Step 2: Convert to fraction form
    96,645.61/133,377.60 = 54,206.88/x
  3. Step 3: Cross multiply
    96,645.61x = 133,377.60 × 54,206.88
  4. Step 4: Simplify right side
    96,645.61x = 7,229,983,557.89
  5. Step 5: Solve for x
    x = 7,229,983,557.89/96,645.61
  6. Step 6: Final answer
    x = 74,809.23

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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.