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Finding the Fourth Proportional to 117,699.60, 176,549.40 and 71,043.60

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Solution

The fourth proportional to 117,699.60, 176,549.40 and 71,043.60 is: 106,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,699.60 : 176,549.40 = 71,043.60 : x
  2. Step 2: Convert to fraction form
    117,699.60/176,549.40 = 71,043.60/x
  3. Step 3: Cross multiply
    117,699.60x = 176,549.40 × 71,043.60
  4. Step 4: Simplify right side
    117,699.60x = 12,542,704,953.84
  5. Step 5: Solve for x
    x = 12,542,704,953.84/117,699.60
  6. Step 6: Final answer
    x = 106,565.40

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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.