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Finding the Fourth Proportional to 60,046.72, 90,037.60 and 42,550.72

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Solution

The fourth proportional to 60,046.72, 90,037.60 and 42,550.72 is: 63,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,046.72 : 90,037.60 = 42,550.72 : x
  2. Step 2: Convert to fraction form
    60,046.72/90,037.60 = 42,550.72/x
  3. Step 3: Cross multiply
    60,046.72x = 90,037.60 × 42,550.72
  4. Step 4: Simplify right side
    60,046.72x = 3,831,164,707.07
  5. Step 5: Solve for x
    x = 3,831,164,707.07/60,046.72
  6. Step 6: Final answer
    x = 63,803.06

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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.