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Finding the Fourth Proportional to 55,993,869.20, 83,990,803.80 and 15,604,353.20

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Solution

The fourth proportional to 55,993,869.20, 83,990,803.80 and 15,604,353.20 is: 23,406,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993,869.20 : 83,990,803.80 = 15,604,353.20 : x
  2. Step 2: Convert to fraction form
    55,993,869.20/83,990,803.80 = 15,604,353.20/x
  3. Step 3: Cross multiply
    55,993,869.20x = 83,990,803.80 × 15,604,353.20
  4. Step 4: Simplify right side
    55,993,869.20x = 1,310,622,168,047,102
  5. Step 5: Solve for x
    x = 1,310,622,168,047,102/55,993,869.20
  6. Step 6: Final answer
    x = 23,406,529.80

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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.