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Finding the Fourth Proportional to 210,567,326.60, 315,850,989.90 and 210,567,326.60

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Solution

The fourth proportional to 210,567,326.60, 315,850,989.90 and 210,567,326.60 is: 315,850,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,567,326.60 : 315,850,989.90 = 210,567,326.60 : x
  2. Step 2: Convert to fraction form
    210,567,326.60/315,850,989.90 = 210,567,326.60/x
  3. Step 3: Cross multiply
    210,567,326.60x = 315,850,989.90 × 210,567,326.60
  4. Step 4: Simplify right side
    210,567,326.60x = 66,507,898,547,206,592
  5. Step 5: Solve for x
    x = 66,507,898,547,206,592/210,567,326.60
  6. Step 6: Final answer
    x = 315,850,989.90

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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.