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Finding the Fourth Proportional to 555,666.78, 833,504.31 and 156,347.94

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Solution

The fourth proportional to 555,666.78, 833,504.31 and 156,347.94 is: 234,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,666.78 : 833,504.31 = 156,347.94 : x
  2. Step 2: Convert to fraction form
    555,666.78/833,504.31 = 156,347.94/x
  3. Step 3: Cross multiply
    555,666.78x = 833,504.31 × 156,347.94
  4. Step 4: Simplify right side
    555,666.78x = 130,316,681,849.62
  5. Step 5: Solve for x
    x = 130,316,681,849.62/555,666.78
  6. Step 6: Final answer
    x = 234,523.07

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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.