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Finding the Fourth Proportional to 70,999.38, 97,961.67 and 43,397.07

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Solution

The fourth proportional to 70,999.38, 97,961.67 and 43,397.07 is: 59,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,999.38 : 97,961.67 = 43,397.07 : x
  2. Step 2: Convert to fraction form
    70,999.38/97,961.67 = 43,397.07/x
  3. Step 3: Cross multiply
    70,999.38x = 97,961.67 × 43,397.07
  4. Step 4: Simplify right side
    70,999.38x = 4,251,249,450.31
  5. Step 5: Solve for x
    x = 4,251,249,450.31/70,999.38
  6. Step 6: Final answer
    x = 59,877.28

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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.