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Finding the Fourth Proportional to 113,762.81, 156,992.55 and 62,775.52

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Solution

The fourth proportional to 113,762.81, 156,992.55 and 62,775.52 is: 86,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,762.81 : 156,992.55 = 62,775.52 : x
  2. Step 2: Convert to fraction form
    113,762.81/156,992.55 = 62,775.52/x
  3. Step 3: Cross multiply
    113,762.81x = 156,992.55 × 62,775.52
  4. Step 4: Simplify right side
    113,762.81x = 9,855,289,747.24
  5. Step 5: Solve for x
    x = 9,855,289,747.24/113,762.81
  6. Step 6: Final answer
    x = 86,630.16

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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.