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Finding the Fourth Proportional to 101,574,140.80, 152,361,211.20 and 70,963,139.20

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Solution

The fourth proportional to 101,574,140.80, 152,361,211.20 and 70,963,139.20 is: 106,444,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,574,140.80 : 152,361,211.20 = 70,963,139.20 : x
  2. Step 2: Convert to fraction form
    101,574,140.80/152,361,211.20 = 70,963,139.20/x
  3. Step 3: Cross multiply
    101,574,140.80x = 152,361,211.20 × 70,963,139.20
  4. Step 4: Simplify right side
    101,574,140.80x = 10,812,029,839,066,198
  5. Step 5: Solve for x
    x = 10,812,029,839,066,198/101,574,140.80
  6. Step 6: Final answer
    x = 106,444,708.80

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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.