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Finding the Fourth Proportional to 191,410.48, 286,938.06 and 84,737.53

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Solution

The fourth proportional to 191,410.48, 286,938.06 and 84,737.53 is: 127,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,410.48 : 286,938.06 = 84,737.53 : x
  2. Step 2: Convert to fraction form
    191,410.48/286,938.06 = 84,737.53/x
  3. Step 3: Cross multiply
    191,410.48x = 286,938.06 × 84,737.53
  4. Step 4: Simplify right side
    191,410.48x = 24,314,422,467.39
  5. Step 5: Solve for x
    x = 24,314,422,467.39/191,410.48
  6. Step 6: Final answer
    x = 127,027.64

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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.