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Finding the Fourth Proportional to 73,699.42, 101,705.54 and 41,870.07

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Solution

The fourth proportional to 73,699.42, 101,705.54 and 41,870.07 is: 57,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,699.42 : 101,705.54 = 41,870.07 : x
  2. Step 2: Convert to fraction form
    73,699.42/101,705.54 = 41,870.07/x
  3. Step 3: Cross multiply
    73,699.42x = 101,705.54 × 41,870.07
  4. Step 4: Simplify right side
    73,699.42x = 4,258,418,079.19
  5. Step 5: Solve for x
    x = 4,258,418,079.19/73,699.42
  6. Step 6: Final answer
    x = 57,780.89

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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.