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Finding the Fourth Proportional to 75,307.68, 103,881.42 and 46,964.16

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Solution

The fourth proportional to 75,307.68, 103,881.42 and 46,964.16 is: 64,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.68 : 103,881.42 = 46,964.16 : x
  2. Step 2: Convert to fraction form
    75,307.68/103,881.42 = 46,964.16/x
  3. Step 3: Cross multiply
    75,307.68x = 103,881.42 × 46,964.16
  4. Step 4: Simplify right side
    75,307.68x = 4,878,703,629.91
  5. Step 5: Solve for x
    x = 4,878,703,629.91/75,307.68
  6. Step 6: Final answer
    x = 64,783.61

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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.