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Finding the Fourth Proportional to 218,198.90, 301,118.56 and 127,562.60

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Solution

The fourth proportional to 218,198.90, 301,118.56 and 127,562.60 is: 176,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,198.90 : 301,118.56 = 127,562.60 : x
  2. Step 2: Convert to fraction form
    218,198.90/301,118.56 = 127,562.60/x
  3. Step 3: Cross multiply
    218,198.90x = 301,118.56 × 127,562.60
  4. Step 4: Simplify right side
    218,198.90x = 38,411,466,421.86
  5. Step 5: Solve for x
    x = 38,411,466,421.86/218,198.90
  6. Step 6: Final answer
    x = 176,038.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.