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Finding the Fourth Proportional to 91,998.72, 126,957.60 and 52,254.72

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Solution

The fourth proportional to 91,998.72, 126,957.60 and 52,254.72 is: 72,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,998.72 : 126,957.60 = 52,254.72 : x
  2. Step 2: Convert to fraction form
    91,998.72/126,957.60 = 52,254.72/x
  3. Step 3: Cross multiply
    91,998.72x = 126,957.60 × 52,254.72
  4. Step 4: Simplify right side
    91,998.72x = 6,634,133,839.87
  5. Step 5: Solve for x
    x = 6,634,133,839.87/91,998.72
  6. Step 6: Final answer
    x = 72,111.15

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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.