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Finding the Fourth Proportional to 93,758.88, 129,387.30 and 51,317.64

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Solution

The fourth proportional to 93,758.88, 129,387.30 and 51,317.64 is: 70,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,758.88 : 129,387.30 = 51,317.64 : x
  2. Step 2: Convert to fraction form
    93,758.88/129,387.30 = 51,317.64/x
  3. Step 3: Cross multiply
    93,758.88x = 129,387.30 × 51,317.64
  4. Step 4: Simplify right side
    93,758.88x = 6,639,850,881.97
  5. Step 5: Solve for x
    x = 6,639,850,881.97/93,758.88
  6. Step 6: Final answer
    x = 70,818.37

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1.5x scale

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.