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Finding the Fourth Proportional to 187,368.15, 280,913.72 and 97,281.53

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Solution

The fourth proportional to 187,368.15, 280,913.72 and 97,281.53 is: 145,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,368.15 : 280,913.72 = 97,281.53 : x
  2. Step 2: Convert to fraction form
    187,368.15/280,913.72 = 97,281.53/x
  3. Step 3: Cross multiply
    187,368.15x = 280,913.72 × 97,281.53
  4. Step 4: Simplify right side
    187,368.15x = 27,327,714,588.62
  5. Step 5: Solve for x
    x = 27,327,714,588.62/187,368.15
  6. Step 6: Final answer
    x = 145,850.37

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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.