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Finding the Fourth Proportional to 60,668,998.80, 91,003,498.20 and 57,834,646.80

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Solution

The fourth proportional to 60,668,998.80, 91,003,498.20 and 57,834,646.80 is: 86,751,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,668,998.80 : 91,003,498.20 = 57,834,646.80 : x
  2. Step 2: Convert to fraction form
    60,668,998.80/91,003,498.20 = 57,834,646.80/x
  3. Step 3: Cross multiply
    60,668,998.80x = 91,003,498.20 × 57,834,646.80
  4. Step 4: Simplify right side
    60,668,998.80x = 5,263,155,175,961,436
  5. Step 5: Solve for x
    x = 5,263,155,175,961,436/60,668,998.80
  6. Step 6: Final answer
    x = 86,751,970.20

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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.