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Finding the Fourth Proportional to 73,730, 101,715.30 and 46,858.10

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Solution

The fourth proportional to 73,730, 101,715.30 and 46,858.10 is: 64,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,730 : 101,715.30 = 46,858.10 : x
  2. Step 2: Convert to fraction form
    73,730/101,715.30 = 46,858.10/x
  3. Step 3: Cross multiply
    73,730x = 101,715.30 × 46,858.10
  4. Step 4: Simplify right side
    73,730x = 4,766,185,698.93
  5. Step 5: Solve for x
    x = 4,766,185,698.93/73,730
  6. Step 6: Final answer
    x = 64,643.78

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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.