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Finding the Fourth Proportional to 103,653.58, 143,049.21 and 58,335.93

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Solution

The fourth proportional to 103,653.58, 143,049.21 and 58,335.93 is: 80,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.58 : 143,049.21 = 58,335.93 : x
  2. Step 2: Convert to fraction form
    103,653.58/143,049.21 = 58,335.93/x
  3. Step 3: Cross multiply
    103,653.58x = 143,049.21 × 58,335.93
  4. Step 4: Simplify right side
    103,653.58x = 8,344,908,701.12
  5. Step 5: Solve for x
    x = 8,344,908,701.12/103,653.58
  6. Step 6: Final answer
    x = 80,507.67

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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.