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Finding the Fourth Proportional to 74,880,113.30, 105,134,489.50 and 74,880,113.30

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Solution

The fourth proportional to 74,880,113.30, 105,134,489.50 and 74,880,113.30 is: 105,134,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880,113.30 : 105,134,489.50 = 74,880,113.30 : x
  2. Step 2: Convert to fraction form
    74,880,113.30/105,134,489.50 = 74,880,113.30/x
  3. Step 3: Cross multiply
    74,880,113.30x = 105,134,489.50 × 74,880,113.30
  4. Step 4: Simplify right side
    74,880,113.30x = 7,872,482,485,497,660
  5. Step 5: Solve for x
    x = 7,872,482,485,497,660/74,880,113.30
  6. Step 6: Final answer
    x = 105,134,489.50

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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.