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Finding the Fourth Proportional to 59,576,640.80, 89,375,458.80 and 21,260,400.80

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Solution

The fourth proportional to 59,576,640.80, 89,375,458.80 and 21,260,400.80 is: 31,894,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,576,640.80 : 89,375,458.80 = 21,260,400.80 : x
  2. Step 2: Convert to fraction form
    59,576,640.80/89,375,458.80 = 21,260,400.80/x
  3. Step 3: Cross multiply
    59,576,640.80x = 89,375,458.80 × 21,260,400.80
  4. Step 4: Simplify right side
    59,576,640.80x = 1,900,158,075,771,887
  5. Step 5: Solve for x
    x = 1,900,158,075,771,887/59,576,640.80
  6. Step 6: Final answer
    x = 31,894,347.35

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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.