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Finding the Fourth Proportional to 91,312.58, 126,023.88 and 52,549.60

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Solution

The fourth proportional to 91,312.58, 126,023.88 and 52,549.60 is: 72,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,312.58 : 126,023.88 = 52,549.60 : x
  2. Step 2: Convert to fraction form
    91,312.58/126,023.88 = 52,549.60/x
  3. Step 3: Cross multiply
    91,312.58x = 126,023.88 × 52,549.60
  4. Step 4: Simplify right side
    91,312.58x = 6,622,504,484.45
  5. Step 5: Solve for x
    x = 6,622,504,484.45/91,312.58
  6. Step 6: Final answer
    x = 72,525.65

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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.