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Finding the Fourth Proportional to 121,105,109.80, 181,657,664.70 and 121,105,109.80

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Solution

The fourth proportional to 121,105,109.80, 181,657,664.70 and 121,105,109.80 is: 181,657,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105,109.80 : 181,657,664.70 = 121,105,109.80 : x
  2. Step 2: Convert to fraction form
    121,105,109.80/181,657,664.70 = 121,105,109.80/x
  3. Step 3: Cross multiply
    121,105,109.80x = 181,657,664.70 × 121,105,109.80
  4. Step 4: Simplify right side
    121,105,109.80x = 21,999,671,429,505,084
  5. Step 5: Solve for x
    x = 21,999,671,429,505,084/121,105,109.80
  6. Step 6: Final answer
    x = 181,657,664.70

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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.