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Finding the Fourth Proportional to 75,000.70, 112,501.05 and 48,735.10

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Solution

The fourth proportional to 75,000.70, 112,501.05 and 48,735.10 is: 73,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,000.70 : 112,501.05 = 48,735.10 : x
  2. Step 2: Convert to fraction form
    75,000.70/112,501.05 = 48,735.10/x
  3. Step 3: Cross multiply
    75,000.70x = 112,501.05 × 48,735.10
  4. Step 4: Simplify right side
    75,000.70x = 5,482,749,921.86
  5. Step 5: Solve for x
    x = 5,482,749,921.86/75,000.70
  6. Step 6: Final answer
    x = 73,102.65

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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.