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Finding the Fourth Proportional to 201,619,539.20, 302,429,308.80 and 58,012,371.20

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Solution

The fourth proportional to 201,619,539.20, 302,429,308.80 and 58,012,371.20 is: 87,018,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,619,539.20 : 302,429,308.80 = 58,012,371.20 : x
  2. Step 2: Convert to fraction form
    201,619,539.20/302,429,308.80 = 58,012,371.20/x
  3. Step 3: Cross multiply
    201,619,539.20x = 302,429,308.80 × 58,012,371.20
  4. Step 4: Simplify right side
    201,619,539.20x = 17,544,641,323,865,028
  5. Step 5: Solve for x
    x = 17,544,641,323,865,028/201,619,539.20
  6. Step 6: Final answer
    x = 87,018,556.80

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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.