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Finding the Fourth Proportional to 101,574,136.80, 152,361,205.20 and 70,963,135.20

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Solution

The fourth proportional to 101,574,136.80, 152,361,205.20 and 70,963,135.20 is: 106,444,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,574,136.80 : 152,361,205.20 = 70,963,135.20 : x
  2. Step 2: Convert to fraction form
    101,574,136.80/152,361,205.20 = 70,963,135.20/x
  3. Step 3: Cross multiply
    101,574,136.80x = 152,361,205.20 × 70,963,135.20
  4. Step 4: Simplify right side
    101,574,136.80x = 10,812,028,803,842,542
  5. Step 5: Solve for x
    x = 10,812,028,803,842,542/101,574,136.80
  6. Step 6: Final answer
    x = 106,444,702.80

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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.