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Finding the Fourth Proportional to 172,701.76, 238,339.20 and 104,724.76

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Solution

The fourth proportional to 172,701.76, 238,339.20 and 104,724.76 is: 144,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,701.76 : 238,339.20 = 104,724.76 : x
  2. Step 2: Convert to fraction form
    172,701.76/238,339.20 = 104,724.76/x
  3. Step 3: Cross multiply
    172,701.76x = 238,339.20 × 104,724.76
  4. Step 4: Simplify right side
    172,701.76x = 24,960,015,518.59
  5. Step 5: Solve for x
    x = 24,960,015,518.59/172,701.76
  6. Step 6: Final answer
    x = 144,526.70

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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.