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Finding the Fourth Proportional to 122,689,125.20, 183,877,390.20 and 65,208,933.20

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Solution

The fourth proportional to 122,689,125.20, 183,877,390.20 and 65,208,933.20 is: 97,730,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,689,125.20 : 183,877,390.20 = 65,208,933.20 : x
  2. Step 2: Convert to fraction form
    122,689,125.20/183,877,390.20 = 65,208,933.20/x
  3. Step 3: Cross multiply
    122,689,125.20x = 183,877,390.20 × 65,208,933.20
  4. Step 4: Simplify right side
    122,689,125.20x = 11,990,448,454,542,134
  5. Step 5: Solve for x
    x = 11,990,448,454,542,134/122,689,125.20
  6. Step 6: Final answer
    x = 97,730,328.05

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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.