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Finding the Fourth Proportional to 210,567,415.10, 315,851,122.65 and 210,567,415.10

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Solution

The fourth proportional to 210,567,415.10, 315,851,122.65 and 210,567,415.10 is: 315,851,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,567,415.10 : 315,851,122.65 = 210,567,415.10 : x
  2. Step 2: Convert to fraction form
    210,567,415.10/315,851,122.65 = 210,567,415.10/x
  3. Step 3: Cross multiply
    210,567,415.10x = 315,851,122.65 × 210,567,415.10
  4. Step 4: Simplify right side
    210,567,415.10x = 66,507,954,452,843,552
  5. Step 5: Solve for x
    x = 66,507,954,452,843,552/210,567,415.10
  6. Step 6: Final answer
    x = 315,851,122.65

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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.