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Finding the Fourth Proportional to 186,640,897.80, 279,961,346.70 and 148,093,710.60

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Solution

The fourth proportional to 186,640,897.80, 279,961,346.70 and 148,093,710.60 is: 222,140,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,640,897.80 : 279,961,346.70 = 148,093,710.60 : x
  2. Step 2: Convert to fraction form
    186,640,897.80/279,961,346.70 = 148,093,710.60/x
  3. Step 3: Cross multiply
    186,640,897.80x = 279,961,346.70 × 148,093,710.60
  4. Step 4: Simplify right side
    186,640,897.80x = 41,460,514,657,376,064
  5. Step 5: Solve for x
    x = 41,460,514,657,376,064/186,640,897.80
  6. Step 6: Final answer
    x = 222,140,565.90

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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.