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Finding the Fourth Proportional to 91,663.32, 126,484.14 and 55,840.32

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Solution

The fourth proportional to 91,663.32, 126,484.14 and 55,840.32 is: 77,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,663.32 : 126,484.14 = 55,840.32 : x
  2. Step 2: Convert to fraction form
    91,663.32/126,484.14 = 55,840.32/x
  3. Step 3: Cross multiply
    91,663.32x = 126,484.14 × 55,840.32
  4. Step 4: Simplify right side
    91,663.32x = 7,062,914,852.52
  5. Step 5: Solve for x
    x = 7,062,914,852.52/91,663.32
  6. Step 6: Final answer
    x = 77,052.79

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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.