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Finding the Fourth Proportional to 212,568.60, 293,346.54 and 117,078.60

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Solution

The fourth proportional to 212,568.60, 293,346.54 and 117,078.60 is: 161,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,568.60 : 293,346.54 = 117,078.60 : x
  2. Step 2: Convert to fraction form
    212,568.60/293,346.54 = 117,078.60/x
  3. Step 3: Cross multiply
    212,568.60x = 293,346.54 × 117,078.60
  4. Step 4: Simplify right side
    212,568.60x = 34,344,602,218.04
  5. Step 5: Solve for x
    x = 34,344,602,218.04/212,568.60
  6. Step 6: Final answer
    x = 161,569.50

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1.5x scale

Why These Related Problems?

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