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Finding the Fourth Proportional to 96,901.80, 133,725.78 and 54,457.80

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Solution

The fourth proportional to 96,901.80, 133,725.78 and 54,457.80 is: 75,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,901.80 : 133,725.78 = 54,457.80 : x
  2. Step 2: Convert to fraction form
    96,901.80/133,725.78 = 54,457.80/x
  3. Step 3: Cross multiply
    96,901.80x = 133,725.78 × 54,457.80
  4. Step 4: Simplify right side
    96,901.80x = 7,282,411,782.08
  5. Step 5: Solve for x
    x = 7,282,411,782.08/96,901.80
  6. Step 6: Final answer
    x = 75,152.49

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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.