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Finding the Fourth Proportional to 113,615.68, 156,790.74 and 62,630.38

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Solution

The fourth proportional to 113,615.68, 156,790.74 and 62,630.38 is: 86,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,615.68 : 156,790.74 = 62,630.38 : x
  2. Step 2: Convert to fraction form
    113,615.68/156,790.74 = 62,630.38/x
  3. Step 3: Cross multiply
    113,615.68x = 156,790.74 × 62,630.38
  4. Step 4: Simplify right side
    113,615.68x = 9,819,863,626.68
  5. Step 5: Solve for x
    x = 9,819,863,626.68/113,615.68
  6. Step 6: Final answer
    x = 86,430.53

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1.5x scale

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.