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Finding the Fourth Proportional to 127,794.60, 191,547.90 and 61,266.60

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Solution

The fourth proportional to 127,794.60, 191,547.90 and 61,266.60 is: 91,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,794.60 : 191,547.90 = 61,266.60 : x
  2. Step 2: Convert to fraction form
    127,794.60/191,547.90 = 61,266.60/x
  3. Step 3: Cross multiply
    127,794.60x = 191,547.90 × 61,266.60
  4. Step 4: Simplify right side
    127,794.60x = 11,735,488,570.14
  5. Step 5: Solve for x
    x = 11,735,488,570.14/127,794.60
  6. Step 6: Final answer
    x = 91,830.86

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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.