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Finding the Fourth Proportional to 64,794.60, 97,218.75 and 31,043.52

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Solution

The fourth proportional to 64,794.60, 97,218.75 and 31,043.52 is: 46,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,794.60 : 97,218.75 = 31,043.52 : x
  2. Step 2: Convert to fraction form
    64,794.60/97,218.75 = 31,043.52/x
  3. Step 3: Cross multiply
    64,794.60x = 97,218.75 × 31,043.52
  4. Step 4: Simplify right side
    64,794.60x = 3,018,012,210
  5. Step 5: Solve for x
    x = 3,018,012,210/64,794.60
  6. Step 6: Final answer
    x = 46,578.14

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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.