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Finding the Fourth Proportional to 248,961,919.60, 349,056,870.80 and 248,961,919.60

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Solution

The fourth proportional to 248,961,919.60, 349,056,870.80 and 248,961,919.60 is: 349,056,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,961,919.60 : 349,056,870.80 = 248,961,919.60 : x
  2. Step 2: Convert to fraction form
    248,961,919.60/349,056,870.80 = 248,961,919.60/x
  3. Step 3: Cross multiply
    248,961,919.60x = 349,056,870.80 × 248,961,919.60
  4. Step 4: Simplify right side
    248,961,919.60x = 86,901,868,603,937,184
  5. Step 5: Solve for x
    x = 86,901,868,603,937,184/248,961,919.60
  6. Step 6: Final answer
    x = 349,056,870.80

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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.