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Finding the Fourth Proportional to 107,953.94, 148,928.29 and 62,605.64

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Solution

The fourth proportional to 107,953.94, 148,928.29 and 62,605.64 is: 86,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,953.94 : 148,928.29 = 62,605.64 : x
  2. Step 2: Convert to fraction form
    107,953.94/148,928.29 = 62,605.64/x
  3. Step 3: Cross multiply
    107,953.94x = 148,928.29 × 62,605.64
  4. Step 4: Simplify right side
    107,953.94x = 9,323,750,670.14
  5. Step 5: Solve for x
    x = 9,323,750,670.14/107,953.94
  6. Step 6: Final answer
    x = 86,367.86

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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.