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Finding the Fourth Proportional to 58,706,628.80, 87,885,760.80 and 43,627,409.60

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Solution

The fourth proportional to 58,706,628.80, 87,885,760.80 and 43,627,409.60 is: 65,311,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,706,628.80 : 87,885,760.80 = 43,627,409.60 : x
  2. Step 2: Convert to fraction form
    58,706,628.80/87,885,760.80 = 43,627,409.60/x
  3. Step 3: Cross multiply
    58,706,628.80x = 87,885,760.80 × 43,627,409.60
  4. Step 4: Simplify right side
    58,706,628.80x = 3,834,228,084,429,223.50
  5. Step 5: Solve for x
    x = 3,834,228,084,429,223.50/58,706,628.80
  6. Step 6: Final answer
    x = 65,311,672.00

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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.