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Finding the Fourth Proportional to 606,409.60, 909,617.10 and 157,098.55

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Solution

The fourth proportional to 606,409.60, 909,617.10 and 157,098.55 is: 235,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,409.60 : 909,617.10 = 157,098.55 : x
  2. Step 2: Convert to fraction form
    606,409.60/909,617.10 = 157,098.55/x
  3. Step 3: Cross multiply
    606,409.60x = 909,617.10 × 157,098.55
  4. Step 4: Simplify right side
    606,409.60x = 142,899,527,465.21
  5. Step 5: Solve for x
    x = 142,899,527,465.21/606,409.60
  6. Step 6: Final answer
    x = 235,648.52

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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.