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Finding the Fourth Proportional to 74,745,430.20, 104,388,510.60 and 74,745,430.20

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Solution

The fourth proportional to 74,745,430.20, 104,388,510.60 and 74,745,430.20 is: 104,388,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,745,430.20 : 104,388,510.60 = 74,745,430.20 : x
  2. Step 2: Convert to fraction form
    74,745,430.20/104,388,510.60 = 74,745,430.20/x
  3. Step 3: Cross multiply
    74,745,430.20x = 104,388,510.60 × 74,745,430.20
  4. Step 4: Simplify right side
    74,745,430.20x = 7,802,564,132,734,260
  5. Step 5: Solve for x
    x = 7,802,564,132,734,260/74,745,430.20
  6. Step 6: Final answer
    x = 104,388,510.60

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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.