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Finding the Fourth Proportional to 212,552.55, 318,753.59 and 62,752.77

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Solution

The fourth proportional to 212,552.55, 318,753.59 and 62,752.77 is: 94,106.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,552.55 : 318,753.59 = 62,752.77 : x
  2. Step 2: Convert to fraction form
    212,552.55/318,753.59 = 62,752.77/x
  3. Step 3: Cross multiply
    212,552.55x = 318,753.59 × 62,752.77
  4. Step 4: Simplify right side
    212,552.55x = 20,002,670,406.18
  5. Step 5: Solve for x
    x = 20,002,670,406.18/212,552.55
  6. Step 6: Final answer
    x = 94,106.94

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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.