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Finding the Fourth Proportional to 12,101,652.80, 18,152,041.80 and 4,912,983.80

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Solution

The fourth proportional to 12,101,652.80, 18,152,041.80 and 4,912,983.80 is: 7,369,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,652.80 : 18,152,041.80 = 4,912,983.80 : x
  2. Step 2: Convert to fraction form
    12,101,652.80/18,152,041.80 = 4,912,983.80/x
  3. Step 3: Cross multiply
    12,101,652.80x = 18,152,041.80 × 4,912,983.80
  4. Step 4: Simplify right side
    12,101,652.80x = 89,180,687,300,322.84
  5. Step 5: Solve for x
    x = 89,180,687,300,322.84/12,101,652.80
  6. Step 6: Final answer
    x = 7,369,298.13

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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.