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Finding the Fourth Proportional to 477,255.11, 715,730.45 and 157,347.37

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Solution

The fourth proportional to 477,255.11, 715,730.45 and 157,347.37 is: 235,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,255.11 : 715,730.45 = 157,347.37 : x
  2. Step 2: Convert to fraction form
    477,255.11/715,730.45 = 157,347.37/x
  3. Step 3: Cross multiply
    477,255.11x = 715,730.45 × 157,347.37
  4. Step 4: Simplify right side
    477,255.11x = 112,618,300,357.76
  5. Step 5: Solve for x
    x = 112,618,300,357.76/477,255.11
  6. Step 6: Final answer
    x = 235,970.86

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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.