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Finding the Fourth Proportional to 208,426.96, 287,628.33 and 112,934.04

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Solution

The fourth proportional to 208,426.96, 287,628.33 and 112,934.04 is: 155,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,426.96 : 287,628.33 = 112,934.04 : x
  2. Step 2: Convert to fraction form
    208,426.96/287,628.33 = 112,934.04/x
  3. Step 3: Cross multiply
    208,426.96x = 287,628.33 × 112,934.04
  4. Step 4: Simplify right side
    208,426.96x = 32,483,029,325.35
  5. Step 5: Solve for x
    x = 32,483,029,325.35/208,426.96
  6. Step 6: Final answer
    x = 155,848.50

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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.