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Finding the Fourth Proportional to 48,931.10, 68,595.70 and 48,931.10

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Solution

The fourth proportional to 48,931.10, 68,595.70 and 48,931.10 is: 68,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,931.10 : 68,595.70 = 48,931.10 : x
  2. Step 2: Convert to fraction form
    48,931.10/68,595.70 = 48,931.10/x
  3. Step 3: Cross multiply
    48,931.10x = 68,595.70 × 48,931.10
  4. Step 4: Simplify right side
    48,931.10x = 3,356,463,056.27
  5. Step 5: Solve for x
    x = 3,356,463,056.27/48,931.10
  6. Step 6: Final answer
    x = 68,595.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.