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Finding the Fourth Proportional to 113,323.55, 156,390.21 and 62,340.19

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Solution

The fourth proportional to 113,323.55, 156,390.21 and 62,340.19 is: 86,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,323.55 : 156,390.21 = 62,340.19 : x
  2. Step 2: Convert to fraction form
    113,323.55/156,390.21 = 62,340.19/x
  3. Step 3: Cross multiply
    113,323.55x = 156,390.21 × 62,340.19
  4. Step 4: Simplify right side
    113,323.55x = 9,749,395,014.56
  5. Step 5: Solve for x
    x = 9,749,395,014.56/113,323.55
  6. Step 6: Final answer
    x = 86,031.50

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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.