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Finding the Fourth Proportional to 147,992,937.60, 221,978,347.20 and 61,709,059.20

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Solution

The fourth proportional to 147,992,937.60, 221,978,347.20 and 61,709,059.20 is: 92,558,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,992,937.60 : 221,978,347.20 = 61,709,059.20 : x
  2. Step 2: Convert to fraction form
    147,992,937.60/221,978,347.20 = 61,709,059.20/x
  3. Step 3: Cross multiply
    147,992,937.60x = 221,978,347.20 × 61,709,059.20
  4. Step 4: Simplify right side
    147,992,937.60x = 13,698,074,968,482,954
  5. Step 5: Solve for x
    x = 13,698,074,968,482,954/147,992,937.60
  6. Step 6: Final answer
    x = 92,558,977.41

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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.