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Finding the Fourth Proportional to 93,808.76, 129,454.79 and 51,367.28

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Solution

The fourth proportional to 93,808.76, 129,454.79 and 51,367.28 is: 70,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,808.76 : 129,454.79 = 51,367.28 : x
  2. Step 2: Convert to fraction form
    93,808.76/129,454.79 = 51,367.28/x
  3. Step 3: Cross multiply
    93,808.76x = 129,454.79 × 51,367.28
  4. Step 4: Simplify right side
    93,808.76x = 6,649,739,541.16
  5. Step 5: Solve for x
    x = 6,649,739,541.16/93,808.76
  6. Step 6: Final answer
    x = 70,886.13

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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.