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Finding the Fourth Proportional to 139,968,124.35, 209,952,186.53 and 139,968,124.35

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Solution

The fourth proportional to 139,968,124.35, 209,952,186.53 and 139,968,124.35 is: 209,952,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,124.35 : 209,952,186.53 = 139,968,124.35 : x
  2. Step 2: Convert to fraction form
    139,968,124.35/209,952,186.53 = 139,968,124.35/x
  3. Step 3: Cross multiply
    139,968,124.35x = 209,952,186.53 × 139,968,124.35
  4. Step 4: Simplify right side
    139,968,124.35x = 29,386,613,751,085,592
  5. Step 5: Solve for x
    x = 29,386,613,751,085,592/139,968,124.35
  6. Step 6: Final answer
    x = 209,952,186.53

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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.