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Finding the Fourth Proportional to 60,703,578.60, 85,176,328.80 and 60,703,578.60

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Solution

The fourth proportional to 60,703,578.60, 85,176,328.80 and 60,703,578.60 is: 85,176,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703,578.60 : 85,176,328.80 = 60,703,578.60 : x
  2. Step 2: Convert to fraction form
    60,703,578.60/85,176,328.80 = 60,703,578.60/x
  3. Step 3: Cross multiply
    60,703,578.60x = 85,176,328.80 × 60,703,578.60
  4. Step 4: Simplify right side
    60,703,578.60x = 5,170,507,970,170,244
  5. Step 5: Solve for x
    x = 5,170,507,970,170,244/60,703,578.60
  6. Step 6: Final answer
    x = 85,176,328.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.