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Finding the Fourth Proportional to 75,482.63, 104,171.47 and 45,267.40

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Solution

The fourth proportional to 75,482.63, 104,171.47 and 45,267.40 is: 62,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,482.63 : 104,171.47 = 45,267.40 : x
  2. Step 2: Convert to fraction form
    75,482.63/104,171.47 = 45,267.40/x
  3. Step 3: Cross multiply
    75,482.63x = 104,171.47 × 45,267.40
  4. Step 4: Simplify right side
    75,482.63x = 4,715,571,601.08
  5. Step 5: Solve for x
    x = 4,715,571,601.08/75,482.63
  6. Step 6: Final answer
    x = 62,472.27

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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.