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Finding the Fourth Proportional to 66,353,865.06, 91,607,612.99 and 58,991,362.40

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Solution

The fourth proportional to 66,353,865.06, 91,607,612.99 and 58,991,362.40 is: 81,443,000.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,353,865.06 : 91,607,612.99 = 58,991,362.40 : x
  2. Step 2: Convert to fraction form
    66,353,865.06/91,607,612.99 = 58,991,362.40/x
  3. Step 3: Cross multiply
    66,353,865.06x = 91,607,612.99 × 58,991,362.40
  4. Step 4: Simplify right side
    66,353,865.06x = 5,404,057,896,492,037
  5. Step 5: Solve for x
    x = 5,404,057,896,492,037/66,353,865.06
  6. Step 6: Final answer
    x = 81,443,000.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.