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Finding the Fourth Proportional to 66,066,908.80, 99,100,363.20 and 60,965,075.20

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Solution

The fourth proportional to 66,066,908.80, 99,100,363.20 and 60,965,075.20 is: 91,447,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066,908.80 : 99,100,363.20 = 60,965,075.20 : x
  2. Step 2: Convert to fraction form
    66,066,908.80/99,100,363.20 = 60,965,075.20/x
  3. Step 3: Cross multiply
    66,066,908.80x = 99,100,363.20 × 60,965,075.20
  4. Step 4: Simplify right side
    66,066,908.80x = 6,041,661,094,835,313
  5. Step 5: Solve for x
    x = 6,041,661,094,835,313/66,066,908.80
  6. Step 6: Final answer
    x = 91,447,612.80

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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.