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Finding the Fourth Proportional to 103,658.98, 143,047.80 and 58,333.42

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Solution

The fourth proportional to 103,658.98, 143,047.80 and 58,333.42 is: 80,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.98 : 143,047.80 = 58,333.42 : x
  2. Step 2: Convert to fraction form
    103,658.98/143,047.80 = 58,333.42/x
  3. Step 3: Cross multiply
    103,658.98x = 143,047.80 × 58,333.42
  4. Step 4: Simplify right side
    103,658.98x = 8,344,467,397.48
  5. Step 5: Solve for x
    x = 8,344,467,397.48/103,658.98
  6. Step 6: Final answer
    x = 80,499.22

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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.