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Finding the Fourth Proportional to 220,644,043.20, 330,966,064.80 and 144,116,539.20

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Solution

The fourth proportional to 220,644,043.20, 330,966,064.80 and 144,116,539.20 is: 216,174,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,644,043.20 : 330,966,064.80 = 144,116,539.20 : x
  2. Step 2: Convert to fraction form
    220,644,043.20/330,966,064.80 = 144,116,539.20/x
  3. Step 3: Cross multiply
    220,644,043.20x = 330,966,064.80 × 144,116,539.20
  4. Step 4: Simplify right side
    220,644,043.20x = 47,697,683,851,618,936
  5. Step 5: Solve for x
    x = 47,697,683,851,618,936/220,644,043.20
  6. Step 6: Final answer
    x = 216,174,808.80

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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.