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Finding the Fourth Proportional to 125,803,298.80, 188,641,801.64 and 73,297,965.48

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Solution

The fourth proportional to 125,803,298.80, 188,641,801.64 and 73,297,965.48 is: 109,910,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,803,298.80 : 188,641,801.64 = 73,297,965.48 : x
  2. Step 2: Convert to fraction form
    125,803,298.80/188,641,801.64 = 73,297,965.48/x
  3. Step 3: Cross multiply
    125,803,298.80x = 188,641,801.64 × 73,297,965.48
  4. Step 4: Simplify right side
    125,803,298.80x = 13,827,060,264,693,728
  5. Step 5: Solve for x
    x = 13,827,060,264,693,728/125,803,298.80
  6. Step 6: Final answer
    x = 109,910,156.54

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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.