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Finding the Fourth Proportional to 85,124.84, 117,454.44 and 49,312.70

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Solution

The fourth proportional to 85,124.84, 117,454.44 and 49,312.70 is: 68,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124.84 : 117,454.44 = 49,312.70 : x
  2. Step 2: Convert to fraction form
    85,124.84/117,454.44 = 49,312.70/x
  3. Step 3: Cross multiply
    85,124.84x = 117,454.44 × 49,312.70
  4. Step 4: Simplify right side
    85,124.84x = 5,791,995,563.39
  5. Step 5: Solve for x
    x = 5,791,995,563.39/85,124.84
  6. Step 6: Final answer
    x = 68,041.19

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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.