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Finding the Fourth Proportional to 93,832.32, 129,490.74 and 51,390.48

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Solution

The fourth proportional to 93,832.32, 129,490.74 and 51,390.48 is: 70,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,832.32 : 129,490.74 = 51,390.48 : x
  2. Step 2: Convert to fraction form
    93,832.32/129,490.74 = 51,390.48/x
  3. Step 3: Cross multiply
    93,832.32x = 129,490.74 × 51,390.48
  4. Step 4: Simplify right side
    93,832.32x = 6,654,591,284.16
  5. Step 5: Solve for x
    x = 6,654,591,284.16/93,832.32
  6. Step 6: Final answer
    x = 70,920.03

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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.