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Finding the Fourth Proportional to 93,752.84, 129,375.70 and 53,479.64

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Solution

The fourth proportional to 93,752.84, 129,375.70 and 53,479.64 is: 73,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,752.84 : 129,375.70 = 53,479.64 : x
  2. Step 2: Convert to fraction form
    93,752.84/129,375.70 = 53,479.64/x
  3. Step 3: Cross multiply
    93,752.84x = 129,375.70 × 53,479.64
  4. Step 4: Simplify right side
    93,752.84x = 6,918,966,050.49
  5. Step 5: Solve for x
    x = 6,918,966,050.49/93,752.84
  6. Step 6: Final answer
    x = 73,800.07

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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.