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Finding the Fourth Proportional to 92,783.32, 128,040.96 and 52,496.28

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Solution

The fourth proportional to 92,783.32, 128,040.96 and 52,496.28 is: 72,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,783.32 : 128,040.96 = 52,496.28 : x
  2. Step 2: Convert to fraction form
    92,783.32/128,040.96 = 52,496.28/x
  3. Step 3: Cross multiply
    92,783.32x = 128,040.96 × 52,496.28
  4. Step 4: Simplify right side
    92,783.32x = 6,721,674,087.63
  5. Step 5: Solve for x
    x = 6,721,674,087.63/92,783.32
  6. Step 6: Final answer
    x = 72,444.85

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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.