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Finding the Fourth Proportional to 79,259,809.60, 118,889,714.40 and 57,648,750.40

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Solution

The fourth proportional to 79,259,809.60, 118,889,714.40 and 57,648,750.40 is: 86,473,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259,809.60 : 118,889,714.40 = 57,648,750.40 : x
  2. Step 2: Convert to fraction form
    79,259,809.60/118,889,714.40 = 57,648,750.40/x
  3. Step 3: Cross multiply
    79,259,809.60x = 118,889,714.40 × 57,648,750.40
  4. Step 4: Simplify right side
    79,259,809.60x = 6,853,843,470,572,886
  5. Step 5: Solve for x
    x = 6,853,843,470,572,886/79,259,809.60
  6. Step 6: Final answer
    x = 86,473,125.60

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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.