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Finding the Fourth Proportional to 114,686.60, 172,029.90 and 88,442.60

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Solution

The fourth proportional to 114,686.60, 172,029.90 and 88,442.60 is: 132,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,686.60 : 172,029.90 = 88,442.60 : x
  2. Step 2: Convert to fraction form
    114,686.60/172,029.90 = 88,442.60/x
  3. Step 3: Cross multiply
    114,686.60x = 172,029.90 × 88,442.60
  4. Step 4: Simplify right side
    114,686.60x = 15,214,771,633.74
  5. Step 5: Solve for x
    x = 15,214,771,633.74/114,686.60
  6. Step 6: Final answer
    x = 132,663.90

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1.5x scale

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.