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Finding the Fourth Proportional to 93,921.64, 129,614.12 and 51,482.50

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Solution

The fourth proportional to 93,921.64, 129,614.12 and 51,482.50 is: 71,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,921.64 : 129,614.12 = 51,482.50 : x
  2. Step 2: Convert to fraction form
    93,921.64/129,614.12 = 51,482.50/x
  3. Step 3: Cross multiply
    93,921.64x = 129,614.12 × 51,482.50
  4. Step 4: Simplify right side
    93,921.64x = 6,672,858,675.49
  5. Step 5: Solve for x
    x = 6,672,858,675.49/93,921.64
  6. Step 6: Final answer
    x = 71,047.08

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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.