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Finding the Fourth Proportional to 107,370.98, 148,188.11 and 77,255.99

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Solution

The fourth proportional to 107,370.98, 148,188.11 and 77,255.99 is: 106,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,370.98 : 148,188.11 = 77,255.99 : x
  2. Step 2: Convert to fraction form
    107,370.98/148,188.11 = 77,255.99/x
  3. Step 3: Cross multiply
    107,370.98x = 148,188.11 × 77,255.99
  4. Step 4: Simplify right side
    107,370.98x = 11,448,418,017.06
  5. Step 5: Solve for x
    x = 11,448,418,017.06/107,370.98
  6. Step 6: Final answer
    x = 106,624.89

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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.