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Finding the Fourth Proportional to 475,262.49, 712,937.55 and 155,416.02

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Solution

The fourth proportional to 475,262.49, 712,937.55 and 155,416.02 is: 233,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,262.49 : 712,937.55 = 155,416.02 : x
  2. Step 2: Convert to fraction form
    475,262.49/712,937.55 = 155,416.02/x
  3. Step 3: Cross multiply
    475,262.49x = 712,937.55 × 155,416.02
  4. Step 4: Simplify right side
    475,262.49x = 110,801,913,564.63
  5. Step 5: Solve for x
    x = 110,801,913,564.63/475,262.49
  6. Step 6: Final answer
    x = 233,138.35

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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.