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Finding the Fourth Proportional to 98,353,203.20, 137,896,038.40 and 98,353,203.20

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Solution

The fourth proportional to 98,353,203.20, 137,896,038.40 and 98,353,203.20 is: 137,896,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,353,203.20 : 137,896,038.40 = 98,353,203.20 : x
  2. Step 2: Convert to fraction form
    98,353,203.20/137,896,038.40 = 98,353,203.20/x
  3. Step 3: Cross multiply
    98,353,203.20x = 137,896,038.40 × 98,353,203.20
  4. Step 4: Simplify right side
    98,353,203.20x = 13,562,517,085,230,204
  5. Step 5: Solve for x
    x = 13,562,517,085,230,204/98,353,203.20
  6. Step 6: Final answer
    x = 137,896,038.40

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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.