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Finding the Fourth Proportional to 122,948,679.60, 184,635,595.80 and 65,553,051.60

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Solution

The fourth proportional to 122,948,679.60, 184,635,595.80 and 65,553,051.60 is: 98,442,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,948,679.60 : 184,635,595.80 = 65,553,051.60 : x
  2. Step 2: Convert to fraction form
    122,948,679.60/184,635,595.80 = 65,553,051.60/x
  3. Step 3: Cross multiply
    122,948,679.60x = 184,635,595.80 × 65,553,051.60
  4. Step 4: Simplify right side
    122,948,679.60x = 12,103,426,738,674,144
  5. Step 5: Solve for x
    x = 12,103,426,738,674,144/122,948,679.60
  6. Step 6: Final answer
    x = 98,442,917.63

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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.