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Finding the Fourth Proportional to 74,999.70, 112,499.55 and 48,734.10

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Solution

The fourth proportional to 74,999.70, 112,499.55 and 48,734.10 is: 73,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,999.70 : 112,499.55 = 48,734.10 : x
  2. Step 2: Convert to fraction form
    74,999.70/112,499.55 = 48,734.10/x
  3. Step 3: Cross multiply
    74,999.70x = 112,499.55 × 48,734.10
  4. Step 4: Simplify right side
    74,999.70x = 5,482,564,319.66
  5. Step 5: Solve for x
    x = 5,482,564,319.66/74,999.70
  6. Step 6: Final answer
    x = 73,101.15

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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.