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Finding the Fourth Proportional to 368,779,905.70, 553,169,858.55 and 185,113,896.10

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Solution

The fourth proportional to 368,779,905.70, 553,169,858.55 and 185,113,896.10 is: 277,670,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,779,905.70 : 553,169,858.55 = 185,113,896.10 : x
  2. Step 2: Convert to fraction form
    368,779,905.70/553,169,858.55 = 185,113,896.10/x
  3. Step 3: Cross multiply
    368,779,905.70x = 553,169,858.55 × 185,113,896.10
  4. Step 4: Simplify right side
    368,779,905.70x = 102,399,427,721,276,384
  5. Step 5: Solve for x
    x = 102,399,427,721,276,384/368,779,905.70
  6. Step 6: Final answer
    x = 277,670,844.15

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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.