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Finding the Fourth Proportional to 107,905.40, 148,870.40 and 62,558.42

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Solution

The fourth proportional to 107,905.40, 148,870.40 and 62,558.42 is: 86,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,905.40 : 148,870.40 = 62,558.42 : x
  2. Step 2: Convert to fraction form
    107,905.40/148,870.40 = 62,558.42/x
  3. Step 3: Cross multiply
    107,905.40x = 148,870.40 × 62,558.42
  4. Step 4: Simplify right side
    107,905.40x = 9,313,095,951.62
  5. Step 5: Solve for x
    x = 9,313,095,951.62/107,905.40
  6. Step 6: Final answer
    x = 86,307.97

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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.