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Finding the Fourth Proportional to 46,858.64, 70,456.56 and 43,205.56

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Solution

The fourth proportional to 46,858.64, 70,456.56 and 43,205.56 is: 64,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,858.64 : 70,456.56 = 43,205.56 : x
  2. Step 2: Convert to fraction form
    46,858.64/70,456.56 = 43,205.56/x
  3. Step 3: Cross multiply
    46,858.64x = 70,456.56 × 43,205.56
  4. Step 4: Simplify right side
    46,858.64x = 3,044,115,130.47
  5. Step 5: Solve for x
    x = 3,044,115,130.47/46,858.64
  6. Step 6: Final answer
    x = 64,963.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.