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Finding the Fourth Proportional to 74,880,118.80, 105,134,497.20 and 74,880,118.80

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Solution

The fourth proportional to 74,880,118.80, 105,134,497.20 and 74,880,118.80 is: 105,134,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880,118.80 : 105,134,497.20 = 74,880,118.80 : x
  2. Step 2: Convert to fraction form
    74,880,118.80/105,134,497.20 = 74,880,118.80/x
  3. Step 3: Cross multiply
    74,880,118.80x = 105,134,497.20 × 74,880,118.80
  4. Step 4: Simplify right side
    74,880,118.80x = 7,872,483,640,314,267
  5. Step 5: Solve for x
    x = 7,872,483,640,314,267/74,880,118.80
  6. Step 6: Final answer
    x = 105,134,497.20

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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.