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Finding the Fourth Proportional to 76,475.52, 105,574.59 and 47,811.11

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Solution

The fourth proportional to 76,475.52, 105,574.59 and 47,811.11 is: 66,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,475.52 : 105,574.59 = 47,811.11 : x
  2. Step 2: Convert to fraction form
    76,475.52/105,574.59 = 47,811.11/x
  3. Step 3: Cross multiply
    76,475.52x = 105,574.59 × 47,811.11
  4. Step 4: Simplify right side
    76,475.52x = 5,047,637,807.82
  5. Step 5: Solve for x
    x = 5,047,637,807.82/76,475.52
  6. Step 6: Final answer
    x = 66,003.31

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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.