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Finding the Fourth Proportional to 93,968, 129,675.84 and 54,247.04

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Solution

The fourth proportional to 93,968, 129,675.84 and 54,247.04 is: 74,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,968 : 129,675.84 = 54,247.04 : x
  2. Step 2: Convert to fraction form
    93,968/129,675.84 = 54,247.04/x
  3. Step 3: Cross multiply
    93,968x = 129,675.84 × 54,247.04
  4. Step 4: Simplify right side
    93,968x = 7,034,530,479.51
  5. Step 5: Solve for x
    x = 7,034,530,479.51/93,968
  6. Step 6: Final answer
    x = 74,860.92

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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.