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Finding the Fourth Proportional to 134,179.48, 185,169.12 and 72,925.68

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Solution

The fourth proportional to 134,179.48, 185,169.12 and 72,925.68 is: 100,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,179.48 : 185,169.12 = 72,925.68 : x
  2. Step 2: Convert to fraction form
    134,179.48/185,169.12 = 72,925.68/x
  3. Step 3: Cross multiply
    134,179.48x = 185,169.12 × 72,925.68
  4. Step 4: Simplify right side
    134,179.48x = 13,503,583,065.16
  5. Step 5: Solve for x
    x = 13,503,583,065.16/134,179.48
  6. Step 6: Final answer
    x = 100,638.21

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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.