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Finding the Fourth Proportional to 103,798.77, 143,242.74 and 58,477.29

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Solution

The fourth proportional to 103,798.77, 143,242.74 and 58,477.29 is: 80,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.77 : 143,242.74 = 58,477.29 : x
  2. Step 2: Convert to fraction form
    103,798.77/143,242.74 = 58,477.29/x
  3. Step 3: Cross multiply
    103,798.77x = 143,242.74 × 58,477.29
  4. Step 4: Simplify right side
    103,798.77x = 8,376,447,247.37
  5. Step 5: Solve for x
    x = 8,376,447,247.37/103,798.77
  6. Step 6: Final answer
    x = 80,698.91

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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.