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Finding the Fourth Proportional to 70,354.68, 105,364.50 and 40,710.04

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Solution

The fourth proportional to 70,354.68, 105,364.50 and 40,710.04 is: 60,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,354.68 : 105,364.50 = 40,710.04 : x
  2. Step 2: Convert to fraction form
    70,354.68/105,364.50 = 40,710.04/x
  3. Step 3: Cross multiply
    70,354.68x = 105,364.50 × 40,710.04
  4. Step 4: Simplify right side
    70,354.68x = 4,289,393,009.58
  5. Step 5: Solve for x
    x = 4,289,393,009.58/70,354.68
  6. Step 6: Final answer
    x = 60,968.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.