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Finding the Fourth Proportional to 107,071.40, 147,759.72 and 59,325.68

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Solution

The fourth proportional to 107,071.40, 147,759.72 and 59,325.68 is: 81,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,071.40 : 147,759.72 = 59,325.68 : x
  2. Step 2: Convert to fraction form
    107,071.40/147,759.72 = 59,325.68/x
  3. Step 3: Cross multiply
    107,071.40x = 147,759.72 × 59,325.68
  4. Step 4: Simplify right side
    107,071.40x = 8,765,945,865.61
  5. Step 5: Solve for x
    x = 8,765,945,865.61/107,071.40
  6. Step 6: Final answer
    x = 81,870.10

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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.