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Finding the Fourth Proportional to 290,439,068.50, 400,805,922.73 and 160,058,876.50

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Solution

The fourth proportional to 290,439,068.50, 400,805,922.73 and 160,058,876.50 is: 220,881,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,439,068.50 : 400,805,922.73 = 160,058,876.50 : x
  2. Step 2: Convert to fraction form
    290,439,068.50/400,805,922.73 = 160,058,876.50/x
  3. Step 3: Cross multiply
    290,439,068.50x = 400,805,922.73 × 160,058,876.50
  4. Step 4: Simplify right side
    290,439,068.50x = 64,152,545,686,709,616
  5. Step 5: Solve for x
    x = 64,152,545,686,709,616/290,439,068.50
  6. Step 6: Final answer
    x = 220,881,254.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.