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Finding the Fourth Proportional to 70,338, 97,066.80 and 52,448.88

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Solution

The fourth proportional to 70,338, 97,066.80 and 52,448.88 is: 72,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,338 : 97,066.80 = 52,448.88 : x
  2. Step 2: Convert to fraction form
    70,338/97,066.80 = 52,448.88/x
  3. Step 3: Cross multiply
    70,338x = 97,066.80 × 52,448.88
  4. Step 4: Simplify right side
    70,338x = 5,091,044,945.18
  5. Step 5: Solve for x
    x = 5,091,044,945.18/70,338
  6. Step 6: Final answer
    x = 72,379.72

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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.