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Finding the Fourth Proportional to 93,888.50, 129,566.13 and 54,144.50

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Solution

The fourth proportional to 93,888.50, 129,566.13 and 54,144.50 is: 74,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.50 : 129,566.13 = 54,144.50 : x
  2. Step 2: Convert to fraction form
    93,888.50/129,566.13 = 54,144.50/x
  3. Step 3: Cross multiply
    93,888.50x = 129,566.13 × 54,144.50
  4. Step 4: Simplify right side
    93,888.50x = 7,015,293,325.79
  5. Step 5: Solve for x
    x = 7,015,293,325.79/93,888.50
  6. Step 6: Final answer
    x = 74,719.41

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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.