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Finding the Fourth Proportional to 212,627.64, 293,424.78 and 117,132.12

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Solution

The fourth proportional to 212,627.64, 293,424.78 and 117,132.12 is: 161,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,627.64 : 293,424.78 = 117,132.12 : x
  2. Step 2: Convert to fraction form
    212,627.64/293,424.78 = 117,132.12/x
  3. Step 3: Cross multiply
    212,627.64x = 293,424.78 × 117,132.12
  4. Step 4: Simplify right side
    212,627.64x = 34,369,466,541.93
  5. Step 5: Solve for x
    x = 34,369,466,541.93/212,627.64
  6. Step 6: Final answer
    x = 161,641.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.