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Finding the Fourth Proportional to 139,968,005.30, 195,501,711.10 and 139,968,005.30

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Solution

The fourth proportional to 139,968,005.30, 195,501,711.10 and 139,968,005.30 is: 195,501,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,005.30 : 195,501,711.10 = 139,968,005.30 : x
  2. Step 2: Convert to fraction form
    139,968,005.30/195,501,711.10 = 139,968,005.30/x
  3. Step 3: Cross multiply
    139,968,005.30x = 195,501,711.10 × 139,968,005.30
  4. Step 4: Simplify right side
    139,968,005.30x = 27,363,984,535,403,872
  5. Step 5: Solve for x
    x = 27,363,984,535,403,872/139,968,005.30
  6. Step 6: Final answer
    x = 195,501,711.10

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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.