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Finding the Fourth Proportional to 59,887,978.20, 89,664,005.70 and 58,208,362.20

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Solution

The fourth proportional to 59,887,978.20, 89,664,005.70 and 58,208,362.20 is: 87,149,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,887,978.20 : 89,664,005.70 = 58,208,362.20 : x
  2. Step 2: Convert to fraction form
    59,887,978.20/89,664,005.70 = 58,208,362.20/x
  3. Step 3: Cross multiply
    59,887,978.20x = 89,664,005.70 × 58,208,362.20
  4. Step 4: Simplify right side
    59,887,978.20x = 5,219,194,920,088,465
  5. Step 5: Solve for x
    x = 5,219,194,920,088,465/59,887,978.20
  6. Step 6: Final answer
    x = 87,149,292.34

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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.