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Finding the Fourth Proportional to 116,703.60, 175,066.29 and 90,437.82

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Solution

The fourth proportional to 116,703.60, 175,066.29 and 90,437.82 is: 135,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,703.60 : 175,066.29 = 90,437.82 : x
  2. Step 2: Convert to fraction form
    116,703.60/175,066.29 = 90,437.82/x
  3. Step 3: Cross multiply
    116,703.60x = 175,066.29 × 90,437.82
  4. Step 4: Simplify right side
    116,703.60x = 15,832,613,623.09
  5. Step 5: Solve for x
    x = 15,832,613,623.09/116,703.60
  6. Step 6: Final answer
    x = 135,665.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.