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Finding the Fourth Proportional to 139,968,184.80, 209,952,277.20 and 134,866,351.20

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Solution

The fourth proportional to 139,968,184.80, 209,952,277.20 and 134,866,351.20 is: 202,299,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,184.80 : 209,952,277.20 = 134,866,351.20 : x
  2. Step 2: Convert to fraction form
    139,968,184.80/209,952,277.20 = 134,866,351.20/x
  3. Step 3: Cross multiply
    139,968,184.80x = 209,952,277.20 × 134,866,351.20
  4. Step 4: Simplify right side
    139,968,184.80x = 28,315,497,552,094,948
  5. Step 5: Solve for x
    x = 28,315,497,552,094,948/139,968,184.80
  6. Step 6: Final answer
    x = 202,299,526.80

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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.