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Finding the Fourth Proportional to 113,622.42, 156,798.90 and 62,636

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Solution

The fourth proportional to 113,622.42, 156,798.90 and 62,636 is: 86,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,622.42 : 156,798.90 = 62,636 : x
  2. Step 2: Convert to fraction form
    113,622.42/156,798.90 = 62,636/x
  3. Step 3: Cross multiply
    113,622.42x = 156,798.90 × 62,636
  4. Step 4: Simplify right side
    113,622.42x = 9,821,255,900.40
  5. Step 5: Solve for x
    x = 9,821,255,900.40/113,622.42
  6. Step 6: Final answer
    x = 86,437.66

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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.