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Finding the Fourth Proportional to 113,762.01, 170,510.12 and 85,591.55

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Solution

The fourth proportional to 113,762.01, 170,510.12 and 85,591.55 is: 128,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,762.01 : 170,510.12 = 85,591.55 : x
  2. Step 2: Convert to fraction form
    113,762.01/170,510.12 = 85,591.55/x
  3. Step 3: Cross multiply
    113,762.01x = 170,510.12 × 85,591.55
  4. Step 4: Simplify right side
    113,762.01x = 14,594,224,608.94
  5. Step 5: Solve for x
    x = 14,594,224,608.94/113,762.01
  6. Step 6: Final answer
    x = 128,287.33

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1.5x scale

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.