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Finding the Fourth Proportional to 404,988.96, 607,475.22 and 105,462.91

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Solution

The fourth proportional to 404,988.96, 607,475.22 and 105,462.91 is: 158,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,988.96 : 607,475.22 = 105,462.91 : x
  2. Step 2: Convert to fraction form
    404,988.96/607,475.22 = 105,462.91/x
  3. Step 3: Cross multiply
    404,988.96x = 607,475.22 × 105,462.91
  4. Step 4: Simplify right side
    404,988.96x = 64,066,104,454.09
  5. Step 5: Solve for x
    x = 64,066,104,454.09/404,988.96
  6. Step 6: Final answer
    x = 158,192.22

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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.