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Finding the Fourth Proportional to 313,655.65, 470,501.51 and 88,998.51

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Solution

The fourth proportional to 313,655.65, 470,501.51 and 88,998.51 is: 133,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,655.65 : 470,501.51 = 88,998.51 : x
  2. Step 2: Convert to fraction form
    313,655.65/470,501.51 = 88,998.51/x
  3. Step 3: Cross multiply
    313,655.65x = 470,501.51 × 88,998.51
  4. Step 4: Simplify right side
    313,655.65x = 41,873,933,342.75
  5. Step 5: Solve for x
    x = 41,873,933,342.75/313,655.65
  6. Step 6: Final answer
    x = 133,502.88

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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.