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Finding the Fourth Proportional to 237,129.60, 355,467.60 and 118,681.68

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Solution

The fourth proportional to 237,129.60, 355,467.60 and 118,681.68 is: 177,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,129.60 : 355,467.60 = 118,681.68 : x
  2. Step 2: Convert to fraction form
    237,129.60/355,467.60 = 118,681.68/x
  3. Step 3: Cross multiply
    237,129.60x = 355,467.60 × 118,681.68
  4. Step 4: Simplify right side
    237,129.60x = 42,187,491,953.57
  5. Step 5: Solve for x
    x = 42,187,491,953.57/237,129.60
  6. Step 6: Final answer
    x = 177,909.01

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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.