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Finding the Fourth Proportional to 64,392.47, 88,947.01 and 53,672.54

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Solution

The fourth proportional to 64,392.47, 88,947.01 and 53,672.54 is: 74,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,392.47 : 88,947.01 = 53,672.54 : x
  2. Step 2: Convert to fraction form
    64,392.47/88,947.01 = 53,672.54/x
  3. Step 3: Cross multiply
    64,392.47x = 88,947.01 × 53,672.54
  4. Step 4: Simplify right side
    64,392.47x = 4,774,011,952.11
  5. Step 5: Solve for x
    x = 4,774,011,952.11/64,392.47
  6. Step 6: Final answer
    x = 74,139.29

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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.