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Finding the Fourth Proportional to 95,978.60, 143,784.30 and 51,590.60

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Solution

The fourth proportional to 95,978.60, 143,784.30 and 51,590.60 is: 77,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,978.60 : 143,784.30 = 51,590.60 : x
  2. Step 2: Convert to fraction form
    95,978.60/143,784.30 = 51,590.60/x
  3. Step 3: Cross multiply
    95,978.60x = 143,784.30 × 51,590.60
  4. Step 4: Simplify right side
    95,978.60x = 7,417,918,307.58
  5. Step 5: Solve for x
    x = 7,417,918,307.58/95,978.60
  6. Step 6: Final answer
    x = 77,287.21

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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.