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Finding the Fourth Proportional to 79,259,805.60, 118,889,708.40 and 57,648,746.40

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Solution

The fourth proportional to 79,259,805.60, 118,889,708.40 and 57,648,746.40 is: 86,473,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259,805.60 : 118,889,708.40 = 57,648,746.40 : x
  2. Step 2: Convert to fraction form
    79,259,805.60/118,889,708.40 = 57,648,746.40/x
  3. Step 3: Cross multiply
    79,259,805.60x = 118,889,708.40 × 57,648,746.40
  4. Step 4: Simplify right side
    79,259,805.60x = 6,853,842,649,121,550
  5. Step 5: Solve for x
    x = 6,853,842,649,121,550/79,259,805.60
  6. Step 6: Final answer
    x = 86,473,119.60

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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.