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Finding the Fourth Proportional to 91,750.60, 126,620.84 and 51,477.12

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Solution

The fourth proportional to 91,750.60, 126,620.84 and 51,477.12 is: 71,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,750.60 : 126,620.84 = 51,477.12 : x
  2. Step 2: Convert to fraction form
    91,750.60/126,620.84 = 51,477.12/x
  3. Step 3: Cross multiply
    91,750.60x = 126,620.84 × 51,477.12
  4. Step 4: Simplify right side
    91,750.60x = 6,518,076,175.18
  5. Step 5: Solve for x
    x = 6,518,076,175.18/91,750.60
  6. Step 6: Final answer
    x = 71,041.24

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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.