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Finding the Fourth Proportional to 195,564.60, 293,346.90 and 127,913.40

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Solution

The fourth proportional to 195,564.60, 293,346.90 and 127,913.40 is: 191,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,564.60 : 293,346.90 = 127,913.40 : x
  2. Step 2: Convert to fraction form
    195,564.60/293,346.90 = 127,913.40/x
  3. Step 3: Cross multiply
    195,564.60x = 293,346.90 × 127,913.40
  4. Step 4: Simplify right side
    195,564.60x = 37,522,999,358.46
  5. Step 5: Solve for x
    x = 37,522,999,358.46/195,564.60
  6. Step 6: Final answer
    x = 191,870.10

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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.