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Finding the Fourth Proportional to 155,670.80, 214,830.97 and 92,063.12

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Solution

The fourth proportional to 155,670.80, 214,830.97 and 92,063.12 is: 127,050.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,670.80 : 214,830.97 = 92,063.12 : x
  2. Step 2: Convert to fraction form
    155,670.80/214,830.97 = 92,063.12/x
  3. Step 3: Cross multiply
    155,670.80x = 214,830.97 × 92,063.12
  4. Step 4: Simplify right side
    155,670.80x = 19,778,008,066.51
  5. Step 5: Solve for x
    x = 19,778,008,066.51/155,670.80
  6. Step 6: Final answer
    x = 127,050.22

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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.