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Finding the Fourth Proportional to 52,591.65, 78,829.03 and 40,070.39

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Solution

The fourth proportional to 52,591.65, 78,829.03 and 40,070.39 is: 60,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,591.65 : 78,829.03 = 40,070.39 : x
  2. Step 2: Convert to fraction form
    52,591.65/78,829.03 = 40,070.39/x
  3. Step 3: Cross multiply
    52,591.65x = 78,829.03 × 40,070.39
  4. Step 4: Simplify right side
    52,591.65x = 3,158,709,975.42
  5. Step 5: Solve for x
    x = 3,158,709,975.42/52,591.65
  6. Step 6: Final answer
    x = 60,061.05

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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.