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Finding the Fourth Proportional to 64,474,821.20, 96,712,231.80 and 60,692,574.80

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Solution

The fourth proportional to 64,474,821.20, 96,712,231.80 and 60,692,574.80 is: 91,038,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,474,821.20 : 96,712,231.80 = 60,692,574.80 : x
  2. Step 2: Convert to fraction form
    64,474,821.20/96,712,231.80 = 60,692,574.80/x
  3. Step 3: Cross multiply
    64,474,821.20x = 96,712,231.80 × 60,692,574.80
  4. Step 4: Simplify right side
    64,474,821.20x = 5,869,714,362,596,438
  5. Step 5: Solve for x
    x = 5,869,714,362,596,438/64,474,821.20
  6. Step 6: Final answer
    x = 91,038,862.20

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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.