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Finding the Fourth Proportional to 122,670,251.20, 183,849,079.20 and 65,190,059.20

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Solution

The fourth proportional to 122,670,251.20, 183,849,079.20 and 65,190,059.20 is: 97,702,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,670,251.20 : 183,849,079.20 = 65,190,059.20 : x
  2. Step 2: Convert to fraction form
    122,670,251.20/183,849,079.20 = 65,190,059.20/x
  3. Step 3: Cross multiply
    122,670,251.20x = 183,849,079.20 × 65,190,059.20
  4. Step 4: Simplify right side
    122,670,251.20x = 11,985,132,356,913,488
  5. Step 5: Solve for x
    x = 11,985,132,356,913,488/122,670,251.20
  6. Step 6: Final answer
    x = 97,702,028.32

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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.