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Finding the Fourth Proportional to 239,139,637.20, 358,071,726.60 and 239,139,637.20

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Solution

The fourth proportional to 239,139,637.20, 358,071,726.60 and 239,139,637.20 is: 358,071,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,139,637.20 : 358,071,726.60 = 239,139,637.20 : x
  2. Step 2: Convert to fraction form
    239,139,637.20/358,071,726.60 = 239,139,637.20/x
  3. Step 3: Cross multiply
    239,139,637.20x = 358,071,726.60 × 239,139,637.20
  4. Step 4: Simplify right side
    239,139,637.20x = 85,629,142,790,701,584
  5. Step 5: Solve for x
    x = 85,629,142,790,701,584/239,139,637.20
  6. Step 6: Final answer
    x = 358,071,726.60

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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.