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Finding the Fourth Proportional to 139,046,594.72, 208,569,892.44 and 74,153,798.96

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Solution

The fourth proportional to 139,046,594.72, 208,569,892.44 and 74,153,798.96 is: 111,230,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,046,594.72 : 208,569,892.44 = 74,153,798.96 : x
  2. Step 2: Convert to fraction form
    139,046,594.72/208,569,892.44 = 74,153,798.96/x
  3. Step 3: Cross multiply
    139,046,594.72x = 208,569,892.44 × 74,153,798.96
  4. Step 4: Simplify right side
    139,046,594.72x = 15,466,249,873,104,582
  5. Step 5: Solve for x
    x = 15,466,249,873,104,582/139,046,594.72
  6. Step 6: Final answer
    x = 111,230,698.63

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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.