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Finding the Fourth Proportional to 445,549.93, 668,058.01 and 141,812.89

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Solution

The fourth proportional to 445,549.93, 668,058.01 and 141,812.89 is: 212,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,549.93 : 668,058.01 = 141,812.89 : x
  2. Step 2: Convert to fraction form
    445,549.93/668,058.01 = 141,812.89/x
  3. Step 3: Cross multiply
    445,549.93x = 668,058.01 × 141,812.89
  4. Step 4: Simplify right side
    445,549.93x = 94,739,235,061.07
  5. Step 5: Solve for x
    x = 94,739,235,061.07/445,549.93
  6. Step 6: Final answer
    x = 212,634.39

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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.