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Finding the Fourth Proportional to 78,008.31, 116,938.67 and 48,040.98

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Solution

The fourth proportional to 78,008.31, 116,938.67 and 48,040.98 is: 72,016.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,008.31 : 116,938.67 = 48,040.98 : x
  2. Step 2: Convert to fraction form
    78,008.31/116,938.67 = 48,040.98/x
  3. Step 3: Cross multiply
    78,008.31x = 116,938.67 × 48,040.98
  4. Step 4: Simplify right side
    78,008.31x = 5,617,848,066.49
  5. Step 5: Solve for x
    x = 5,617,848,066.49/78,008.31
  6. Step 6: Final answer
    x = 72,016.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.