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Finding the Fourth Proportional to 603,402.51, 905,112.02 and 154,127.10

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Solution

The fourth proportional to 603,402.51, 905,112.02 and 154,127.10 is: 231,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,402.51 : 905,112.02 = 154,127.10 : x
  2. Step 2: Convert to fraction form
    603,402.51/905,112.02 = 154,127.10/x
  3. Step 3: Cross multiply
    603,402.51x = 905,112.02 × 154,127.10
  4. Step 4: Simplify right side
    603,402.51x = 139,502,294,597.23
  5. Step 5: Solve for x
    x = 139,502,294,597.23/603,402.51
  6. Step 6: Final answer
    x = 231,192.76

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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.