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Finding the Fourth Proportional to 141,565.60, 212,665.20 and 118,237.60

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Solution

The fourth proportional to 141,565.60, 212,665.20 and 118,237.60 is: 177,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,565.60 : 212,665.20 = 118,237.60 : x
  2. Step 2: Convert to fraction form
    141,565.60/212,665.20 = 118,237.60/x
  3. Step 3: Cross multiply
    141,565.60x = 212,665.20 × 118,237.60
  4. Step 4: Simplify right side
    141,565.60x = 25,145,022,851.52
  5. Step 5: Solve for x
    x = 25,145,022,851.52/141,565.60
  6. Step 6: Final answer
    x = 177,621.00

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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.